The "massacre" of Tiananmen is nothing compared to any currently mass demonstration and their response in the USA (hello, G. Floyd, rest in peace).
Actually, the "massacre" of Tiananmen isn't, just take a look at https://wikileaks.org/plusd/cables/89BEIJING18828_a.html. I'm Brazilian, and if you've been to any demonstration here in Brazil or have ever organized any political struggle for basic rights, you're well aware of the real meaning of oppression and relentless pursuit for demanding basic rights -- the shallow part is having your house scouted by official police cars, your family receiving death threats.. you don't wanna know what happens next, but if you're curious, just search for what our military dictatorship practiced between the 60's and the 90's (trained by the USA, of course) and got away with it. By the way, the military and the police here are still doing people in ways you don't want to know. The only country with similar proportions where repression forces are more violent and tyrannic is the USA.
It is liable to suggest deregulation as the solution to everything. It is less likely to fabricate stories about Chinese human rights abuses.