Not only that, it feminizes you.
By watching porn, you are passively receiving sexual content, and this is the feminine role during the sexual act, women watch and receive sex in a sense while the male enacts it. Also you chose between videos, with many options, in a similar way women chose between a catalogue of potential sexual experiences on tinder.
It breeds passivity, cuckism, voyeurism, sexual degeneracy (you need increasingly extreme content to reach arousal).
Also there is a masochisc element to it. Negative emotion and sex overlap, if you experience pain and then sexual pleasure the contrast is even more exciting, so if you watch degrading shit that makes you feel ashamed, but aroused at the same time, you feel more adrenaline etc. So you look for porn that makes you feel inadequate, weak, etc (femdom for example)
This is the perfect combination for turning you into a tranny. When i used to be addicted to porn i started being attracted to male genitalia or imagining myself as the woman in the scenes (autogynephilia).
No wonder jews promote this stuff, its a literal military weapon.