Yaniv is of course not representative of trans people.
He is (and I use the word "he" because let us not forget this is a person who has openly published his fantasies about helping young pubescent girls insert their first tampon, so, frankly hell will freeze over before I call him "she") illustrative of what happens when a country is stupid enough to allow self ID without thought for the legal consequences thereof, and illustrative of what happens when you prioritise trans rights above all other rights (women's rights, the rights of ethnic minorities to play an equal role in society, freedom of speech, freedom of belief, freedom of association).
Yaniv is the logical end point if you start from the crazy premise that self ID trumps everything else.
The major failing lies not with Yaniv, odious as he is. The fault lies with a political system gripped by collective insanity, so determined to be open minded about everything that they've let their brains fall out.