>You are describing the abridging private organizations' right to free speech

Many people and organizations have their free speech regulated because of the ability of speech to do harm (e.g. yelling "fire" in a crowded theater).

Saying something trite about rights is not an argument. these companies have a huge responsibility to our democracy, and treating them as if they're just another company is exactly what allows them to be so cynical about making decisions calculated to increase ad revenue even when they're harmful to democracy.