“holding [whatever] hostage” means an armed attacker and threat to life. It’s no misrepresentation, you were using exaggerated and hyperbolic terms to describe a peaceful protest.

Nobody’s safety was jeopardized. Some disruption is the point of a protest; you can’t operate the building during a sit-in, for example.

“protest in a way that doesn’t affect anything and allows society to ignore you” is not a legitimate or constructive type of feedback.