[berrypicker]

The trend is that certain ideas are offensive and are therefore kept censored or ridiculed, until people can overlook those societal views of past generations and assess the ideas with a fresh perspective, at which point they become accepted.

There are things today which if you say you might lose friends over, but I am certain it's a case of nation-wide groupthink. Evidence? In other parts of the world these ideas are widely accepted already.