It might be that people are relatively fixed in their views by the time they are 30-ish and the world keeps changing. A lot of these old racists were racist when they were 30 too, it’s just that when they were 30 being as racist as they are now was pretty acceptable in polite society.
If Trumpism becomes the new norm then 50 years from now maybe old people will be appalled by the level of racism in society and want to bring us back to the glory days of the 20-oughts. It’s just that usually, hopefully, we are marching towards better rather than worse things, hence:
