It's almost like racism and sexism are bad for society instead of good for it.

It's almost like, even if acting like property owning men with money who have no respect for people of other backgrounds or for women or children was the strategy that some people wanted to pursue in the past, and that felt comfortable enough to them, and that even sometimes felt like a nice, bubbly, warm, hot tub of coziness to them....even if it was good enough for them in the past, there's no guarantee it's going to continue to feel that way for them in the future. 

And there's also no guarantee that it's going to feel that way for their descendants, either. 

Probably, it won't feel that way for most their descendants, actually.

Change is inevitable. 

Who you choose to vote for does not stop change from happening.