As a non-American, I’m still a big fan of Captain America. Although I’m not a fan of Peggy Cap (or the other OC Caps added in other Marvel games) for reasons already stated elsewhere. Anyway, I get that it’s Cap’s 75th anniversary and they were sort of mandated by Marvel to make something like this so it really can’t be helped.
I realize she’s “Captain America” in the game and when you think of the colors red, white, and blue combined with a star and stripes of color, the US flag is probably the first thing that pops into most people’s minds. But there are at least 21 countries that have those colors on the flag, a great number of those also including white, 5 point stars.
From color/motif alone, she could be Captain Australia.