Memes

The stuff you posted includes what is basically NATO propaganda, which is why it got so much reactions (and admittedly not all of them constructive - again, no downvotes here). Don't take my word for it, take the CIA's word for it for example (or any number of a hundred - far better argued and sourced than mine - answers in the very thread you linked). The "Tiananmen Square massacre" as usually described in Western sources is not something that actually occurred (though more generally there were huge protests and people killed during that night).