Actually yeah if someone stating their views in a context that doesn't directly impact you leaves you "distraught" I'd say you have an emotional issue on your end. That said, in the real world people commonly have those and avoiding the situations that trigger them is perfectly reasonable.

Let's just be clear that something can be commonplace while also being a personal issue.

I guess people getting extremely worked up in controversial threads are all just exceptional cases like I am then.

My entire point there was that this is not exceptional in the least. People having emotional issues is quite common!

Incidentally, the response you're exhibiting here - a reflexive emotional rejection as opposed to critical thought - is closely related to the phenomenon being discussed here. That exact response is often (but not always) what leads to people becoming distraught in the first place. It's an emotional feedback loop.

Examining the context we see something of a dichotomy. That mental health being harmed by political discourse is likely to indicate a problem with personal views versus that being normal and expected depending on context. I'm presenting a third viewpoint tied to the example you provided. The idea that it is related to an emotional issue which is largely independent of personal views, that this is a relatively common thing to encounter, and that people should not be criticized for taking steps to mitigate personal issues.

In other words, I am largely agreeing with you but going on to point out that it's a personal issue deserving of long term work.