I used to have this stance as well.
But my opinion on the situation changed when I noticed the ways that one class is waging war on the other classes in my country. There is real damage being done, real violence being perpetrated. Wage theft, poisoning the environment, suppressing voting and certain kinds of speech. Limited access to healthcare, limited access to education, limited access to the jobs that confer greater respect or mobility. Some people are living in a kind of hell and dying earlier because of it.
And those doing the violence are usually protected from the consequences of their actions by others in society saying just what you've said. "It's okay to protest, but don't inconvenience anyone while doing it". "It's theft to deny me the use of the road that you're blocking with the protest or the building that you're protesting in front of".
I used to think that protests where everyone remained polite were the only ones I could respect. Other kinds of protests, where people were being disruptive were just hooligans acting out. I used to say those things.
Maybe this way of thinking helps to preserve in some small way the politeness of society. I doubt it's effective at doing that in a meaningful way. And if there is a class of people who are oppressing another class, ending that oppression would be the most effective way of increasing the politeness of society as a whole, even if certain kinds of disruption was needed to get there.
One thing that I do know is true is that saying these things does help the bully class to continue doing what they are doing. They aren't going to stop just because someone asked nicely. They are being protected by words like this. And that's not okay.
I can't tell if you're trolling. But if you aren't, here's something cool you might enjoy.
If an object has two sides, you can colour each side a different colour. Think of a dinner plate. That has two sides and an edge that goes all the way around. You could use a marker to colour the front side red, stopping anywhere you hit an edge. Then you could use another marker to colour the back side blue, because the backside wouldn't be coloured yet.
It sounds like I'm explaining this in a dumb, very obvious way. I am. Not because I think anyone reading this is dumb. But because the shape in the photo does something that is not obvious.
Look at the shape above and imagine it without all the keys sticking out. Imagine it is smooth enough to draw on with a marker. It's pretty easy to see where any edges are. Imagine colouring one side of the shape red, avoiding where the edge is. If you keep colouring as much as you can, without crossing an edge, once you're done you'll find that there's no place left to colour with the blue marker. You'll have coloured the whole shape. It only has one side and that one side snakes and twists around to be its own backside as well.
If you're looking to learn more, the shape is called a Möbius strip.