It is disrespectful and disgraceful enough by so called professional teams it should never be allowed by the National team.

MADISON, Wis., April 1, 2021 /Christian Newswire/ — U.S. Olympic athletes can protest at the Olympic Trials. Kneeling or raising a clenched fist on the podium will be acceptable. At the start line during the national anthem, athletes can protest too…
Source: U.S. Olympic Committee Wrong to Allow Athletes to Protest During the Olympic Trials