It’s a double edged sword. Throughout recorded history, action repressive to the point of tyranny, only led to formation of secret organizations. Those organizations would then strategically target for death, those who were shouting and making trouble. Everything was done quietly in a secretive manner and publicly, the organization members simply blended in, and agreed with the troublemakers but would strike when the time was right.
It is very possible that killing the troublemakers might start taking place. A systematic culling of Marxists.