No free speech is not a right. Freedom of speech without prosecution from the government is a right.
No one is required to platform your stupid fucking viewpoint.
The 1st amendment ONLY allows you to say what you like and not have the government prosecute you for it. However, there are still limits to speech that cannot be prosecuted.
For example, you can't yell fire in a crowded theater. You can't cause a mass panic that results in injuries or death.
A private company has exactly zero obligation to platform your idiotic ramblings.
Yes, he is. People like this are divorced from reality.
He's a billionaire or whatever. The speech doesn't effect him in any way. He still has more resources than he could hope to burn through in multiple lifetimes. Speech literally cannot harm him.
He doesn't understand that to all the doors, some speech can and does hurt us.
Also you don't have to have a pi to run a pi hole. You can run it in windows using WSL. Just search Google for pi hole WSL. All you do is run the power shell script and it does practically everything for you