Obviously, he didn't invent sexual deviancy, but he did severe damage to the societal consensus about what was acceptible, and tolerable, and what "went without saying."
Historically he cannot be over-estimated, as some of his myths still widely bruited about by the media today.
Huxley was prescient enough, but nobody had "Brave New World" by the bedside for night-time reading . If he thought BNW was coming faster than he expected, The Kinsey Reports had a lot to do with it.
That a sexual revolution was coming could be seen at least as early as WWI. Marxists felt that all institutions, including the family, needed to be weakened and they sneered at "bourgeois morality." This was published by a Marxist psychiatrist in 1945: