And that's a really great way to end up with an absolute massacre. Enough protesters show up with guns to eliminate the arms advantage SWAT teams have (which is already considerable and not about to be changed by a couple handguns)? The National Guard rolls in tanks and the military shows up to quell what can now be called an armed insurrection. Protesters - peaceful or otherwise - are slaughtered by the thousands, and the government can justify it because they were shooting at police.
No, "terrorists" was exclusively used for those that threatened violence, particularly the ones who staged an armed invasion of the state capitol building (and were completely unharmed and not actually charged with anything because apparently an armed terrorist threat is less objectionable than peacefully protesting). The peaceful lockdown protesters were just idiots.
No, those are rioters. Nobody's objecting to them being dealt with like rioters. The objection is to the violent response to people who are protesting peacefully. There are countless videos and accounts out there of people being shot with rubber bullets or tear gas who are very obviously doing nothing wrong. Riots are chaotic situations, certainly, and it can be difficult to differentiate between troublemakers and those that are acting peacefully, but there is no defense for shooting deliberately at people lying on the ground, or that are carrying an injured friend to safety, or that are simply taking a video from their doorstep (all of which have been documented occurrences).
Oh man you couldn't be more wrong if you tried, 98% of the people protesting aren't rioting at all you act like everyone protesting is out there to either break shit or steal shit.