cent_cent- while those numbers are pretty staggering, correlation does not equal causation. One can argue that those numbers are a result of having to hide, to “be in the closet”, feeling ashamed, etc… One can argue that recent legislation will reduce those numbers by promoting acceptance and equality.
MDG- Who says anything about need to be married? They want to be married because it’s important to them. Should older people who can’t have children anymore not marry (or remarry) because they “don’t need to be married”?
Also, many non-Jews aren’t faithful to their spouse. From what I’ve heard, adultery isn’t uncommon among non-Jews. Maybe there shouldn’t be marriage for them either? Yes, they have a different definition of marriage than we do. They aren’t having halachic marriages. They are having secular marriages or Christian marriages or whatever it is that they are having. Our definition of marriage has no relevance to them.