https://www.floridadaily.com/rick-scott-wants-a-meeting-with-ioc-to-talk-about-2022-olympics-in-china/
Uyghurs in Xinjiang and Hong Kong - neither a major issue in 2008.
Also comparisons with the Bans on South Africa during Apartheid and Afghanistan due to the Taliban.
I can even see Trump pulling the USA out of the IOC if they refuse to cancel.
If I was a American or British athlete preparing for 2022 I would be preparing to accept that it is probable I would be bared by my country to take part.