I don't agree with the executive order at all, but the person you responded to doesn't have the situation backwards.

People (such as yourself, and myself as it happens) will claim that this order violates the first amendment. However the Supreme Court has explicitly allowed such actions under very specific circumstances. One such circumstance was called out above.

So the question is: would the actions in this case constitute a step to prevent a private interest (ie Twitter) from restricting communication via control of a physical pathway?