Couldn't they just show trigger warnings for controversial content? Disney does this with old classics[1]. This is historical animation, I think it's worth showing an accurate snapshot of the past.
Or people could just grow up and realize that you can't judge people who lived a hundred years ago by today's standards.
Imagine what ordinary things you do every day that people a hundred years from now will consider a social crime and want you banned or cancelled for.
Like antenna TV programming used to be - guaranteed to be inoffesive so you don't have to watch crap kids like to watch.
It’s the inevitable tension between Warner’s will to forever use this art for outright commercial purposes (i.e. sell T&J to kids) and the simple wish of academics and passionate consumers to just enjoy the art for what it is.
This is one of the "Censored 11" cartoons:
people judging and censoring content post-hoc will be one of those things, almost certainly.