I am with you buddy.
For a long time I could not or would not cry at all. But if I ever needed to explain why U2 are the only band that mean anything to me, it is because of the emotion they tap into.
Nearly all U2 songs that can be sad also have hope, and a joy of redemption in them too. Not wrist slashers - I never cry to "depressing" songs. (or "love" songs - Celine/Whitney whinge songs do nothing for me)
U2 are the only band to do BIG emotions really well. BD and streets are "flying" songs.
But songs like With or Without You and One make me cry - but in a cathartic way. Like saying yes it is sad, but there is hope. I have thought about it a lot, and can't work out why one song like WOWY can for me be both a tear jerker and a triumphant "I've made it through" song. (happy tears) I love the layers, the complexity. When I am feeling a loss it lets me let it out. When I am feeling joy it does the same thing. So the same song is with me in the dark times, but also now, when life has never been better.
It makes me wonder if I a big sooky girly man. But then, it is pretty much only U2 that can do it for me. My Miracle Drug.