While I agree with most of what you say, I believe we should be more careful claiming there are "obvious reasons" for something without scientific evidence. What you are saying, which might be correct (and I kind of agree with) is not scientifically proved (that I know of), there might really be a gender imbalance for suicidal tendencies but having "obvious reasons" is not enough, at least for me, to claim it as a fact. I find it strange and I'd prefer more work to be done on this matters.