why isn’t there critical mass?
Well, that’s the $25,000 question isn’t it?
My guess: people are still too fat and happy to risk life and limb at the moment. Because that’s what you have to be willing to do before you “take to the streets” against a government that has already shown it is willing to rig elections and detain political prisoners indefinitely.
They’ll either need to get hungrier or angrier before they are willing to make that level of commitment, I think.