It's because they're everywhere online. Many of them are NEETs and computer programmers financed by Twitter e-begging bucks, the Bank of Mom and Dad, and scammed disability money. They have all day to "own the transphobes" online and force tech companies to be more "inclusive".

When Tumblr banned porn in 2018, trans people went to Twitter along with the porn (which is very telling) and because Twitter allows them to interact with progressive lawmakers and professionals, gender ideology began to be taken more seriously by lawmakers.

BLM also funds lots of TRA organizations, so trans people's prevalence, especially post-2020, is in part due to them parasitically leeching off BLM, in addition to grooming lots of kids online during lockdowns.

Most "normies" who aren't on Reddit and certain parts of Twitter don't know much about gender ideology. The most they've ever had to interact with it is seeing an occasional headline and having to share their pronouns at work. This is good because this means a good chunk of the population is peakable.