What is universal free speech except a desire to have the government dictate what companies can have on their platform?
If Google supported fascism, yes, I would want an alternative. I wouldn't support them.
I would sell my phone. I wouldn't be surprised if they started removing apps that didn't conform to their ideology.
But here's the thing. This social network does not moderate people posting about killing their political enemies.
I would not defend your hypothetical Google's right to support a hateful ideology.