Chairman Mao has been dead for almost 50 years. That mass murderer George W. Bush is still alive. It’s too late to condemn Mao, but it’s not too late to condemn Bush.
The horrible things CCP did 50 or 70 years ago is a matter for historians. The murders American thugs are committing today are a topic that affects our lives.
America is a murderous nation.
I experience the opposite. Whenever I criticise US government, I get attacked by hordes of cringy Americans.