Many of these athletes don’t even agree with the war and many are public about this disagreement.
Even the Olympics allows these athletes to perform under a none disclosed flag.
Why should Russian and Belarusian athletes be punished individually for the actions of their countries government?
I’ll point you to Wimbledon this year where Belarusian Victoria Azarenka was unfairly boo’d off court after her loss with Ukrainian Elina Svitolina. Azarenka has been openly against the war since it started. Why should she be punished?