Adding to that, the new generation more often than not grew up with divorced parents. This kind of sets the precedent in the young males mind that marriage is not good if it turns sour, and that the "in good as in bad times until death do us part" is just completely meaningless babble.

Looking at my friends there's a pattern, a man who loses his job long term becomes divorced quite quickly. So there's no added safety for the man and no economic incentive (or even a disincentive, not sure how bad it really looks for men losing everything in court).

You pay alimony only if you expected women to give up work for marriage.

In practice it's very difficult to prove you didn't. So even if she lost her job for unrelated causes or simply quit against your wishes, juries tend to concede alimony unless you make disproportionate efforts to produce proof.

You also pay off she says, "I don't want to work." Considering that it's illegal (as it should be) to force your spouse to work (or stay at home), your point is irrelevant.

It is relevant, because in majority of marriages in USA both partners work. Stay at home women, especially stay at home women without small child at home are minority among married women.

You all make it sound as if stay at home women was the norm, but it is not the case.