I agree with all of that. And this isn't the first time that pronouns have had me wavering.
It is so massively entrenched at the moment that you don't misgender, that it can undermine your credibility amongst certain people, even allies.
But like you say, I believe it changes your perception. You keep saying she instead of he and unless you deliberately translate that in your head, it becomes almost as though they are a she.
I stopped doing it online, as much as I can. But, for instance, when someone likes curry speaks on here, I can't bring myself to call him, he. It feels like I'm making a point that is coming across as rude or cruel.
Maybe a disclaimer would work. "I don't agree with forcing people into preferred pronouns, but on this occasion I will, out of courtesy".