[Jason Abbadon]

Good points but I mean, whenever a black man was shown he was pointing a finger with some bullshit "what have yuu done for me?" accuzation.
Most famous of this was in Green Lantern/Green Arrow when a old man points at green Lantern and say "You helped the green man and you helped the white man but what have you done for the black man?" and GL for some reason just looks ashamed and speechless instead of saying "look around dumbass- everything on Earth would be GONE if not for me!"

Same with the Falcon some guy would always be accusing him of selling out because he was cap's partner...and Falcon was a GREAT character for a long time because he was this guy always doing the right thing while taking flack from both sides.
Then the writes changed and they made (I kid you not) a retcon wherein Sam Wilson was an unwitting pawn of the Red Skull, who had used the Cosmic Cube to take the most stereotypical 60's pimp (Snap Wilson) and forcibly make him into moral and great guy ('cause he could not find an already moral and patriotic black guy to brainwash or something), knowing Cap would make him his partner and then he'd betray him.

Really...they made him into a super scumbag that was only an upright (black) citizen because a freakin Nazi had made him that way as a trap for the all-American hero (himself the aryan ideal of blonde hair and blue eyes).
The moral seemed to be that anyone can change- with enough cosmic reality-altering manipulation.

Yeah...Marvel was utterly clueless back then everywhere except on Spider Man which kicked crazy ass in the 60's and 70's- violence, murder, drug abuse, poverty and racism were all explored there in a way that still reads well today.
And all that was just from Aunt May.