I don't think this is really about making fun of people's names, or holocaust references. It's about power. The managers at basecamp were unhappy that their employees asserted power over them in the workplace, and decided to assert their own power in turn over what they view as their personal fiefdom and retract some of the freedoms they had so graciously granted their workers, because those ungrateful workers actual…
Separated from their justification, the 6 policies represent an assertion that Basecamp leadership are the sole arbiters of all things Basecamp. I don't think that's an awful thing in itself, but the way it was announced was clearly felt to be completely demoralizing for employees who assumed their judgment on the direction of the company was valued.
And the result seems likely to be catastrophic. Basecamp has had their pick of the litter for talent for years. Sure, they'll hire new folks who are aligned with their new way of running the company, but you don't go back to being a beacon of the industry when you lose 1/3 of your staff in a week over an ego trip.