>>509646271 (OP)As other anons have said, the Wachowskis specifically got mixed up with a BDSM Dominatrix who convinced them to transition, well before Obama.
The truth is it has little to do with Obama directly. The trans movement gained momentum after the Supreme Court ruled in favor of Gay Marriage in 2015. Having won their battle, the well developed and experienced activist networks that lobbied for gay marriage moved on to Trans rights, which is why it exploded so fast in 2016 onward.