The WNT won two WCs protesting for civil rights and it had no impact then, just as it did not at the Olympics. They got bronze for the same reason Alyson Felix did, which is that age eventually catches up to even the greatest athletes in the history of their respective sports. Or is Alyson Felix also a 35 year old uppity woman who would have won gold in the 400m if only she hasn't been distracted protesting against gender inequality?
Your statement about Carlos and Smith is also inaccurate. They were founding members of the Olympic Project for Human Rights before the '68 Games and publicly advocated for its boycott. When that didn't happen, they made clear in advance they would stage a protest if they won medals. They didn't wait until they won medals to protest, you only think that because of your ignorance. Honestly, it is is pretty offensive to use this kind of revisionist history and Carlos and Smith in particular, both of whom have fully supported kneeling, to rationalize your opposition to things they hold so dearly.
Funny story. In 1906, Irishman Peter O'Conner participated in the Olympics despite British and Olympic committee refusing to recognize Ireland as a separate entity. When he won silver (surely he would have won gold if he'd just been 100% focused on being a complacent little British citizen right?), the Olympic committee raised the British flag at the ceremony. He then climbed the flag pole and started waving the Irish flag around in protest. I guarantee every racist and sexist here considers Pete O's actions to be heroic, despite being an uppity Olympian supporting a cause that resulted in rioting and an insurrection that ultimately led to thousands of deaths. Why is that? Why is Pete O', a white guy who disrespects the flag a hero, but a few women who kneel (and not even at the Olympics or even in support of insurrection) are despicable traitors? It is because of things people don't want to admit about themselves.