The problem with extreme polarization in a 2 party system is that each party doesn’t police itself, doesn’t rein itself in, and when the other finally gets back in power, it pushes through awful retaliatory measures. The 2 parties are happy with this state of affairs because they’re pretty much guaranteed 50% of the time to be the one in power, in control. Vote 3rd party to break this cycle
The way voting in the US works, voting 3rd party has the same real effect as not voting at all.
If you want to build a third party, you have to start at the bottom, with local races, and work your way up. You can't do it starting with national races.
I think you have to start lower than that, with the voting system itself. I've seen it argued in several places that "first past the post" leads to only two parties.
