I think this is well said. You should be proud to be who you are, and sometimes bigots need a reality check, but it gets to a point where it is counter productive. I remember a few years ago when people were upset about the Proud Boys militia, and leftists made memes about gay dudes wearing banana hammocks being our "proud boys" because of gay pride. And, uh...no. First, it's just not funny, so it fails as a meme. Second, being gay does not make you the representative of leftist/progressive ideals, I'm sorry. And third, I don't particularly want to see a dude's dick imprint on my home page either, please stop.
Granted, I am in more leftist spaces than most people, but I see the trans flag more than any flag, even the US flag. Even during the world cup where every country was patriotic, I still saw more trans flag spam than anything else. And that is absolutely ridiculous to me, especially for a cause such as being trans, whose identity is generally "I want to be seen as the other gender and I'd prefer people don't make a big deal about it", not "my identity is being trans and I will never let you stop thinking about what's in my pants".
I hear you with healthcare but in most cases, "my cause or your cause" is the same cause, even if it doesn't specifically apply to you. If life saving medicine is free, we all win, period. Nobody is like "fuck people with type 1 diabetes, my tax dollars shouldn't go to them getting insulin which would be negligibly cheap in a socialized system" unless they're just vehemently anti-socialized medicine in general. Trans "healthcare" is, ultimately, not health related, it is cosmetic surgery or changing your body for cosmetic reasons. Mental health related? Arguable, and I do agree that it is personally. But VERY arguable, and not a lot of people support it. So leading the charge on socialized medicine by making it about trying to psy-op people into thinking "trans rights=human rights, and trans rights=access to expensive treatment paid by tax dollars" only hurts everyone by being an easy scapegoat. Not to mention the whole related psy-op of trying to convince people being trans, particularly "girldick" is hot in porn and whatnot, which is a whole other can of worms. Trying to trick people with thinly veiled propaganda is not the move if you're trying to start a serious movement. And it makes the trans movement, which is already polarizing and on shaky ground, come off to outsiders like a fetish, ESPECIALLY if you don't personally know a trans person and only see what's online. Which is a lot of people, since trans people are like 1% of the population, Trump is president so it is not popular to come out, and many trans people i didn't know were trans until years of knowing them, because once again, the idea is to be quietly accepted as the other gender. Which makes all the trans spam even more perplexing. Who is actually posting all of this? LARPers? Well meaning supporters? Russian trolls trying to flanderize the movement?