Crime hasn't increased. Nor has disease overall.
And does anyone reading this thread even know anyone with Syphillis? Back in the "Good ol' Days" before the sexual revolution all sorts of famous people had Syphillis.
Hello? Heard of AIDS?
Among homosexuals the rate of syphilis is very high, as well as a host of other diseases, parasites and other horrible medical conditions including what used to be called (and may still) “Gay Bowel Syndrome”.