I'm sorry, you are right that there is oppression in the US, but to suggest that this incident is somehow equivalent to the Tiananmen Square Massacre, where people were run over with tanks, and their remains hosed down the street drains, is absolutely disgusting.

The term "false equivalence" doesn't even begin to describe this. The disrespect for what happened is so reprehensible that it completely invalidates any point you might be trying to make. People died in Tiananmen Square.