I completely agree with your assessment that the media selling "agendas" is the problem. Not just traditional media, but social media too. Dialogue and democracy aren't attractive anymore, we've been basically coerced into fear and put into boxes.
From my point of view, the lefts biggest problem is that the "left" of today is pretty much the center. I find it extremely hard to take any left-of-center (think Bernie Sanders) position today. Anyone not in the center or in the right and you'll have both the liberal (as in economically liberal) and the conservative media against you. I don't live in the US/UK, but I live in an increasingly anti-leftist country. I can't even complain that Uber eroding worker's rights without being called a commie here. I honestly feared for my life one time when I was wearing a red t-shirt and accidentally bumped into a right-wing rally when I was visiting another town.
But the thing is, it doesn't take a lot of empathy to see that a lot of conservatives are feeling the same way: they complain that the media has a liberal-bias, they complain about not having the right to speak (because of political correctness), they complain about persecution because of their religion, they had their jobs taken away and the establishment (which they perceive as being completely on the left) failed them... they have liberal media against them. I can completely sympathize with all that.
Funny thing is that from reading comments of Trump voters, I feel as if the more radical left and Trump voters have a lot of fears in common: automation taking jobs, globalism taking jobs, elites raking it, the center-left liberals being too worried about what they call "political correctness" but saying fuck-off to workers, religious and rural people... Not to mention I can totally sympathize with how they crave for more radicalism in politics, just like I, as a leftist, do.
As I wrote that last paragraph, I wondered if what we're actually witnessing is the end of that brand of centrist/moderate liberalism. I'm biased but I think that the demise of liberalism will be that cause "dark times ahead", unless we find a viable left to strike a balance with the current right.
I think your observation that the "harder left" and "harder right" have a lot in common is a valid one, I suspect a lot of people who would have voted for Sanders voted for Trump.
In a way I think the values of "left" and "right" don't really apply like they did (if they ever did) anymore.
On some issues I hold views that the left would call me a right for and the right would call me a left for (e.g. Some things the the state runs should be private, some things that are private the state should run, not all defense spending is bad, fairer taxes can mean higher taxes on the rich, regressive taxes hit the poorer harder, religion has zero place in the bedroom or in reproductive rights, equal rights does not mean positive discrimination, the right to free speech doesn't mean the right to no consequences, single payer healthcare is not the devil (I'm British, the NHS is one of the better things we did), a social safety net is part of the social contract, immigration is broadly a good thing and rarely a very bad thing etc etc), corporations should pay their taxes and those found to be avoiding them should be punished in a way that actually makes it easier for them to just pay, we need to spend a lot on infrastructure (our national audit office found that there is between a 3 to 1 and 7 to 1 RoI on infrastructure spending).
I'm all over the spectrum when it comes to left/right, what I don't like (near universally) is the crop of politicians on either side of the old left/right.
What I'd really like is a party that addresses the tough issues with evidence led policy and the honesty to say "That's a tough problem, We don't have a total solution but we are going to try <foo> because we think it'll work better than <bar> because <fizz>".
There isn't enough nuance in politics anymore, everything is absolutist "This good, you bad", I want smart, articulate thinking politicians who are thinking about the big problems (where the problems aren't how do I benefit myself).
From my point of view, the lefts biggest problem is that the "left" of today is pretty much the center. I find it extremely hard to take any left-of-center (think Bernie Sanders) position today. Anyone not in the center or in the right and you'll have both the liberal (as in economically liberal) and the conservative media against you. I don't live in the US/UK, but I live in an increasingly anti-leftist country. I can't even complain that Uber eroding worker's rights without being called a commie here. I honestly feared for my life one time when I was wearing a red t-shirt and accidentally bumped into a right-wing rally when I was visiting another town.
But the thing is, it doesn't take a lot of empathy to see that a lot of conservatives are feeling the same way: they complain that the media has a liberal-bias, they complain about not having the right to speak (because of political correctness), they complain about persecution because of their religion, they had their jobs taken away and the establishment (which they perceive as being completely on the left) failed them... they have liberal media against them. I can completely sympathize with all that.
Funny thing is that from reading comments of Trump voters, I feel as if the more radical left and Trump voters have a lot of fears in common: automation taking jobs, globalism taking jobs, elites raking it, the center-left liberals being too worried about what they call "political correctness" but saying fuck-off to workers, religious and rural people... Not to mention I can totally sympathize with how they crave for more radicalism in politics, just like I, as a leftist, do.
As I wrote that last paragraph, I wondered if what we're actually witnessing is the end of that brand of centrist/moderate liberalism. I'm biased but I think that the demise of liberalism will be that cause "dark times ahead", unless we find a viable left to strike a balance with the current right.