150,000 people in Washington, DC, protested the Iraq war when it was getting started.
It, uh, didn't accomplish much. I'm not sure that the Ministry of Foreign Affairs is any more inclined to listen to protests than the Department of State was.
This can't be true, because this thread started off with
> In repressive regimes there is no freedom to protest. You cannot have hypocrisy in how you deal with political protests if you do not have political protests!
Enough that there are protests in most major Russian cities against the invasion of Ukraine.
Just yesterday, Moscow police arrested over 1,000 protesters. They can only keep up that pace for so long.