Two main points ... first, I think no one (not myself anyway) has said that the only way to understand the futility of suicide is by embracing Islam. What I am certain about is that if a man sincerely embraces Islam he will be the better for it. Second, unless you understand Islam, you can not embrace it nor will you understand what it means to embrace it. I am not sure what motivates somoene to oppose a something which they do not care for or know very much about either. I do see this happen a lot though. You seem to mention a lot of fault with societies and then draw a conclusion that society is imperfect, therefore religion is imperfect.

Religion is not society, and therefore can't be judged byb society's perfections or imperfections. to use this reasoning is similar to saying that universities exist, but not all people understand quantum physics - therefore quantum physics is based on imperfect reasoning. I wish you the best anyway. Peace to you.