She didn't get "decked". She got hit and staggered a little bit. Tough girl
Captain America's been torn apart, now he's a court jester with a broken heart/he said "Turn me around and take me back to the start/I must be losing my mind, are you blind? I've seen it all a million times"
while he doesn't seem to be a gentlemen, it was a fair play. she came running at him and most likely hit him, but we can't see for sure. dude is then within his rights to counter. he went for the closed fist, because even though this is a female he is going to hit, he doesn't want to look like a homo. but he was kind enough to go with a palm-first side shot. she barely looks fazed.
at least the blacks know they shouldn't be smacking up they bitches in public. unless it's their ho and ain't nobody gonna fault them fo smacking up a triflin, thievin ho.