Being a 130 lb weakling is NOT A FLAW. Flaws don't mean outward, physical strength only. Steve's about as lacking in flaws as a character can be - that's by design. Incorrect, incredibly flawed. He is out of touch with reality. He don't even know what people are talking about half the time. He's too idealistic, too trusting, too naive. He can't fly or shoot lightning out his hands are anything, he is substantially weaker than several others. You have lost your marbles.
Also, Carol got her butt kicked by Thanos - big time! Steve though? He could do that all day. Cap would easily beat Carol in a fight -
because he's Captain America. I think that's pretty clear. You are insane, she would thump him one time into Outerspace and he would suffocate.
Carol's flaws are that she didn't look deeper at things, she tends to be a reactionary and brash, and her hair.