Oh, come on...it’s uncool to show any form of allegiance to the nation that enabled you to succeed and attain fame and respect in your field.
On the other hand it is:
“cool”
“fashionable”
“in”
“hip”
“awesome”
“neat”
“modern”
to show total disdain to your country, nation, people and way of life that enabled you to become a spoiled, stupid and immature brat.
These are 1968 Mexico City Olympic protest-wannabees.
George Foreman did the right thing. Waved the flag with pride and love of country.