Closet Cases – Republicans secretly love what they publicly hate So far in 2022, more than 300 anti-LGBT bills have been proposed across 36 states – at least one third of which are directed at trans youth. This surge, especially in anti-trans legislation from Republicans, stands in stark contrast to...
Notably, the words the author focused on are all considered offensive now. If a more liberal person were to look for transgender porn, they may not use those terms.
Absolutely this is why the data looks this way. I bet if they looked at searches for "trans woman", "trans man", "mtf", "ftm", etc, the charts would be reversed.
Also, people searching "femboy" mostly won't be looking for trans content at all, just... femboys (cisgender men who express themselves in what are traditionally feminine ways).