For people that are captured by this form of thinking, everything is framed in for or against terms. If something or someone can be placed, even conceptually, as against their side; they fail the purity test or make a decision that isn't strictly kosher, well then every single thing they do needs to be hyper analyzed, then framed in a dispassionate if not fully negative perspective.
Like you, I'm getting very tired of this discorse. I'm sure for people who view things this way it can be exhausting, as you constantly have to be reframing everything in ever evolving terms of political doctrine. I don't think this will last. Ordinary people are getting tired of it, and I think these puritans are starting to get real pushback in the open. A totally anecdotal opinion, but hopefully one that resonates a bit.
In anycase I think the best thing we can all do is try our best to be objective, compassionate, and nuanced when evaluating people or events. Life is complex and its elements don't fit into a binary of good and evil.