That’s pure anti-china propaganda. Anti-left propaganda even. It’s a Godwin point.
There’s a saying in French : it’s easier to see the straw on the neighbor nose than the beam you have in the eye.
If you want to criticised China you should talk about the current, these days genocide they’re doing. Or about Hong Kong. Tiananmen is a Godwin point, in my generation you’d only know about it if you’re exposed to liberal propaganda. Because as a historical event it is irrelevant.