Why do you suppose that is, though?

Do you suppose that if you form a very tightly-knit, strongly-opinionated base that tolerates no dissent (no buts!) and considers everyone else to not even acknowledge their humanity, as you're suggesting, everyone else will go, "Oh, wow, they're just ordinary people exactly like us."?

You're arguing that the community should other itself. That's how you build a cult, not acceptance.

(Edit: in case it isn’t clear, the recommendations I am reacting to here are these: “Ultimately, base-building is what is needed to be done. Find the people that don’t need years of work but merely a nudge, and then find a hundred more.” and “focus more on reaching out to liberals and leftists who are merely misinformed, not moderates and conservatives who don’t care about your humanity”. Together with the “no buts” sentiment, this paints a picture of insularity that seems highly at odds with reversing radicalization-against-queer-people. And it should go without saying that the prospects for a community that has a majority radicalized against them are poor indeed. That is only even remotely tenable when one’s key rights are already well-secured, so the radicalization is largely ineffectual at perpetuating major harm.)