I don't idolize them - but I don't begrudge them their fandoms, if any. Many people online have fan followings for absurd, intellectually offensive reasons. If I wanted to do something about it, I'd go after youtubers with child fans.

Similarly, I don't begrudge them their body modification lifestyle. That lifestyle has been colonized by horror fetishists - well guess what, my hobbies have, too. (Some I dropped, some I keep carving out a niche of sanity in.) Again, if I wanted to do something about body modification, I'd start with the most common surgeries and procedures women are having: boob jobs, nose jobs, ass jobs, facial liftings, Bella Hadid's chromosomal disorder look, anal bleaching. Once those are extinct, then I'll go after cat people, lizard people, fake men, and fake women.

The problem with transgenderism is not the surgeries adult body modification enthusiasts inflict on themselves - there are worse ways to waste money and worse ways to die - it's child abuse and the disenfranchisement of women and homosexuals, the harm to groups on the scale of populations, not specific individuals.

They oppose trans-ing children.

they believe that there are also “trans” children under 18 who may actually be better off being given puberty blockers and medicalised in order to find peace with themselves.

This doesn't compute. Obviously transing children should be a crime and perps should get the chair. If the "good transsexuals" believe some children will grow up with a desire to surgically modify their bodies as adults and we shouldn't ban that -- I happen to agree. Put in place the same safeguards as exist for non-trans human sterilization. True, it will still be an undesirable outcome, but there are better causes to fight for.

that is, they acknowledge that they have not actually changed sex.

They fulfil stereotypical ideas of what men and women should really be

This doesn't compute either. If they believe they haven't changed sex, then Buck Angel (for example) doesn't fulfil a stereotypical idea of what a woman should be, she (ahem) bucks it.

The transsexuals appear to be helping. Be speaking up, they make it known that rapists and chomos don't speak for all transes, and the politicians who have taken up the trans cause and are unlikely to budge on that first order of business should maybe take their heads out of their asses and look around once in a while. At the very least, this is a civilizational challenge and none of us know how to solve it, so it's be unethical to tell the transsexuals to shut up and stop trying to help.