[ThrustVectoring]

"Free speech" as a general principle isn't about respect. It's a practical cease-fire: we agree to not try to censor your views even while it's within our power, and you agree to not try to censor our views even while it's within your power.

If Facebook has the right to set up their workplace such that mainstream right-of-center views are excluded, then other companies have the right to set up their workplaces such that mainstream left-of-center views get excluded, too. IMO, it's far better to cut as much of the political BS as possible so that the greatest number of folks can get along and work together - this is why a lot of workplaces have a professional norm against talking politics in general.