We can all agree it's immoral, but it's also just plain stupidity.
Even if you are white supremacist "kill all people of color", you still need a professional military that's not wasting time massacring civilians and creating PR disasters daily, if you hope to win any wars at all.
Also "their place in history is settled": sorry to ruin your day but that's not how collective processing of historical trauma works, nor history as a science.
This is masks off moment for old.reddit. They have already done device fingerprinting, usage analytics, IP address retention, and cookies before, so not asking for email was rather symbolic, token privacy feature anyway. Removing it only confirms what's already been there for years.
Use redlib, it's nice. You can disable JavaScript and use it through Tor for complete security and anonymity, subscribe to subreddits, and it also has a lot of themes to customize your experience with.
And you can export your settings and subscriptions to import on another redlib instance anytime, so you are never locked in using only one instance forever.