Although intentions are good, censoring these types of people will only cause them to congregate in more private forms.
Facebook is merely handing-off their problems to some other entity. You don't fix a racism by deleting facebook accounts.
Both Twitter and Facebook's recent actions in censorship should concern people.
Racism is not their battle, they should focus on addressing other issues, such as...
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I will digress for a moment and remind you all how and who they make money from.
USER VOLUME AND YOUR DATA!!!
Basic Business Model:
Build User Volume -> Classify/Categorize Users -> Determine most targeted for digital advertisers -> Maintain these users -> Integrate user data with programatic ecosystems
Across the board Facebook Advertising Network (FAN) is widely known to be ridden with fraud, siphoning hundreds of millions of dollars every year (mainly to foreign savvy techsters).
In the billions of dollars American companies spend every year through FAN, so much of that is going to the wrong parties.
But all they care about is VOLUME NOT QUALITY!