This is the sort of "no shit" question that's actually hard to answer for that reason, like basic arithmetics that actually comes from number theory.
Because anime turns you into a porn-addicted tranny.
This is THE answer and THE proof, no need for anything else.
But we can speculate about the reasons
why anime turns you into a porn-addicted tranny.
Anime girls are well known for having pretty faces
1. Anime girls are well known for having
child faces. They aren't all Maetel or whatshername with the headband, they're lolis.
and sexy bodies, with slim bodies and MASSIVE breasts.
2. So, exactly what professional crossdressers (historically, and probably currently, overhelmingly gay) like in women.
Unless they exclusively watch shows about angry men with duelling scars fighting to the death in giant space robots for serious reasons.
3. Most anime (yes, even a lot of giant space robot anime) deals with feelings, and most feelings are gay, and watching it for serious reasons makes you gay. Space Battleship Yamato (the original) is about resilience and nationalistic pride, it isn't gay. Evangelion is about muh trauma and it is, even though Evangelion has more women.
4. Girls are portrayed in anime as engaging in gross faggy shit like pedicure and clothes shopping. While your woman should be clean and well-dressed, you personally watching a sexualized interpretation of how she does it is gay.
5. Big titty anime porn is (a) gross and (b) fictional. It repels IRL women and restricts you to a cummunity of male producers and consoomers, you're effectively fapping to a virtual whore roleplayed by a man. This is simping for trannies, and it's hella gay.
6. Porn itself (anime or not) is gay, you're training yourself to coom to something getting fucked by something else with you as the onlooker, it's cuckoldry. Cuckoldry is emasculating and therefore gay.
7. Male protagonists in anime are often drawn looking like young women, in contrast with background male characters which look like men.
