it was never meant to be opt in.

Source? I've posted numerous pieces of evidence to the contrary:

people finding out: https://github.com/audacity/audacity/pull/835#issuecomment-833778895

people highlight the opt-in dialog text: https://github.com/audacity/audacity/pull/835#discussion_r627756976

there are no commits in between; it could not have been changed to opt-in "when people found out" as you claim.

For one thing the Nuremberg Laws (1935) prohibit interracial marriage. That alone is bad. I also believe laws that restrict citizenship are bad. Of course I see a big problem with allat.

There were also many more "incidents" in the four years following the Nuremberg Laws... Audacity, none.