For someone who claims to like history, you seem to be missing some major parts. Degenerate art is a specific phrase used by the Nazis during their short time in power. They claimed gays, jews, and other scapegoat groups were degenerate and blamed their issues on them instead of addressing their actual issues. One of their first book burnings was at the Institute of Sexology, which was targeted for it’s study and treatment of homosexual and transgender (at the time more commonly called transexual) people. This was a civilization soon to decline, not the one that was open to new ideas.