No, everybody is. In a democratic society, it is the responsibility of every citizen and corporation to act in accordance with democratic values.
At the end of the day, democracies aren't built out of laws written on paper -- they're built on the everyday decisions people take such as voting, arguing over issues, and condemning non-democratic bad actors.
Just as people can protest in the streets against undemocratic abuses of power, so corporate entities can and should deplatform people and organizations that explicitly, violently threaten our democracy.
It's up to every person and corporation to be their own arbiter. That's the ultimate safeguard of democracy.
If AWS waited for a court order, it could very well be too late.