You might have a point if people were simply pointing out facts instead of slamming enemies and pouring on the snark.
Even then, though, years of this job have taught me that everyone overestimates the overlap between their views and the pure truth, and that this effect grows, I would even say exponentially, with the intensity of one's commitment to a topic. To contribute well to a thoughtful discussion, each of us needs to take this effect into account and find some way to compensate for it.
So we should just bury our heads in the sand and ignore President Trump's blatant lies and misinformation about a deadly pandemic because calling him out offends Republicans who are responsible for putting the deranged lunatic into power in the first place? "Hey, you know the people who are destroying the world and have spent the last four years engaging in constant vitriol toward anyone to the left of them? Please just stay calm and respect their opinion." Laughable.
Just because one side makes claims at odds with reality doesn't mean it's partisan to point out the absurdity of those claims.