Not that Wikipedia is authoritative or anything but it seems to meet their definition. https://en.wikipedia.org/wiki/Social_media
So if you're not a conservative who's picked this up as a thing to push forward your career with, you can't "not politicize" it because once something is politicized you can't put it back in the jar.
EDIT: And if those politicians, however disingenuous, are successful in politicizing it... well doesn't that just mean it resonates with a lot of people and then the left should talk about it because it's important to people?
The US has a major political party dedicated to opposing expanded health care. That makes it political.
"The personal is political." It's a phrase originating in second-wave feminism and continuing onwards in current cultural issues.
Why (ethically) would a political agenda be based on anything else?
I don't read the news or social media, so it's bizarre to me when someone tries to divert a basic human concern into a political agenda. Mental health is important no matter what political spectrum you're on, and treatment isn't political, it's healthcare.