Once upon a time, yes. But they don't work in the modern world we live in now.
Show me a successful protest that achieved change in the past ten years?
The French yellow vest
The Dutch farmer protests
I can go on if you want
As that is the country we are talking about here.
What I am saying is that protesting is a method of freedom & rebellion that is now flawed for today's modern world. It may work in a few odd countries but overall now achieves nothing.
Protests do not work in these modern times.
It may of worked in the in the 1800's because society was maybe of been more united, less corrupted in power however the power that folks had has been chiseled away and has been decaying ever since.
Adding the fact we are now more divided than ever.
The only kind of protest that would work today are those of who use their wallet. Stop buying from corporations from the likes of Amazon, funding Google. But no, we won't do that; whatever would you do without your Amazon prime.
Instead let's hold a stick with cardboard glued to it and pretend that politicians care. (spoiler: they don't)
Protesting about war and then buying resources to protest about the war off Amazon who back the war is face-palming hilarious.
Otherwise everything is a just waste of time, resources and exposure. But by all means, if it makes yourself feel better then go for it.
And no, I didn't vote for Brexit.
If you have too weak internal political support for something cardboard signs do help push something maybe over the edge.