

This argument always makes it seem like no one at the time knew these behaviours were wrong, which is obviously not true.
There is a big difference between just staying impartial and not saying anything or being an active part of whatever discrimination/inhumaneness is happening, and the people who were actively discriminating were bad people and still are.
Consuming drugs should not be illegal. Doesnt matter what effect the drug has, punishing the consumer does no good for anyone.
Selling drugs can and should in some cases be illegal though