Wimbledon has banned Russian and Belarusian players this year. I totally understand why. But being banned for the decisions of others seems undemocratic. Should individuals be asked for their opinions to decide whether they could compete, but this would also possibly lead to vilification at home. And would also be a horrific human rights digression.
Sport is a great way of sharing culture and ideas. Banning a countries teams may be more acceptable? I am not sure. The England cricket team going to South Africa was overtly political support, USA and USSR boycotting successive Olympics in retrospect seems to have been pointless politically.
Not visiting a country seems to be more potent than the reverse. I would support a ban on the England football team from Qatar this year due to human rights breeches.