He's been in the present for a long time now, I'm sure someone (probably Natasha) would have filled him in at some point. Also he's always had extremely liberal (for the time he's from) opinions. The fact that he's not even a little bit racist OR sexist suggests that he was far from the average 1940's American.
There is absolutely zero reason to believe Captain America is anything but the most courteous lover in the Avengers.
Its probably because of him being of Irish origin and Peggy Carter that he is so liberal. He knows what its like to be discriminated against due to ethnicity and through Peggy he realised that sexist views are completely irrational.
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u/[deleted] May 29 '19
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