I think I feel something similar to what you guys have described here.

As a man I feel dirty, perverted and overbearing when I approach women, and it is impossible for me to even think of asking her on a date at that point or making any kind of flirtatious gestures, because it feels like I've crossed a huge line by just approaching her to begin with.

I feel the same things - men are bad and only interested in one thing, and I feel extremely ashamed around women. Also my appearance isn't great, so I feel very dirty and overbearing like a "greasy" man approaching a beautiful lady. I'm not actually physically dirty, but I feel dirty.