This is a flat out lie. My bf shies away from sex sometimes but he still does lots of other things for me that shows he loves me. He told me that his first time was forced out of him, that he felt pressured and emotionally manipulated into it, so to say they can't be vulnerable either is untruthful. Try telling a guy midway through sex that his dick stinks, that will show you how vulnerable they can get.
Saying that men are incapable of loving women like women love men just sounds like a primary school argument. Some men love women more,
some women love men more. There's been a lot of great art throughout antiquity of men loving women, which was enough to convince me that good men can exist. I know guys can be jerks, some see women as "property", some see us as whores or sluts for showing our ankles and wrists, but if you want to find love, you need to believe that some guys can be good, otherwise you'll reject every one that comes your way and you really will never find a good guy. I hope you find one eventually