OK, here are the things that are, in fact, TRUE.

These people are getting kicked off of flights

They are often vocal Trump supporters and some of them are claiming that they were kicked off "for supporting Trump"

Fourteen Alaska Air passengers coming from the coup were, indeed, put on the No Fly List

A few days ago, Mississippi Democratic Rep. Bennie G. Thompson proposed to the FBI, TSA, etc. that people who attended the coup be put on the No Fly List

Sara Nelson, president of the Association of Flight Attendants union, issued a statement saying "We support the swiftest action with clear consequences and clear rules for keeping these people off planes."

And, here are some other things that are true.

These people were kicked off of flights for not wearing masks or for acting like assholes.

The Alaska Air passengers were put on the No Fly List after causing a disruption.

If it were true that the government could positively identify everyone who was at the coup and get them on the No Fly List in a matter of days, I think we might have bigger problems than these wackos. And I don't say that lightly! It would be really bad! Especially considering how often people end up on the No Fly List by mistake.

THAT IS NOT EVEN SORT OF HOW THE NO FLY LIST WORKS. This should be very obvious to everyone who has been on a plane at any time during the last 20 years. They don't let you through security, let your board your plane, and then come and take you off the plane. That would be absurd.

https://www.wonkette.com/tasered-balls-and-no-fly-lists-a-quick-buzzkilling-reality-check