They certainly are. 

Though they're reactions to Trump seem to be in response to the disgust from his seditious attack on the Capitol. 

It's still scary.  They can do it to anyone whom they think - in their opinion -  had committed a "seditious" act.

  In a democratic society - we don't automatically condemn anyone based on public opinion!  We don't do it by polls, either.

The rationale is that Trump uses these platforms to incite the type of violence we saw last week. 

Allowing him to continue makes them complicit.