Without even having watched the video, transgenderism is absolutely a neo-religion. We've been saying so on MN FWR for years.
It requires belief in a 'soul' - gender.
It has a catechism - TWAW, NBIAV, etc
It has a philosophy akin to Alistair Crowley's neo-religion, Thelema, of Do what thou wilt shall be the whole of the Law - "We only want to pee in peace - Be Kind! (But only to believers.)"
It punishes apostates - detransitioners.
It differentiate between believers and unbelievers - trans v 'cis'.
It gives special status to its laity - allies - over unbelievers but below true believers.
Believers who undergo initiation rituals - sex mimicry surgery/drugs - gain superior status.
And, of course, it requires unquestioning acceptance of unprovable statements - born this way/wrong body/puberty blockers are reversible/better a live 'daughter' than a dead son/etc.