Typical of Marvel to introduce a new character of a theme who is less interesting than the existing character they took the theme from.
This could have been an excellent opportunity for Bradley to shine, but instead we get this hastily cobbled together pretender.
...he is a D-lister, but he's doing his part because he believes in America and in what the Falcon can do. You can't do that with Isiah Bradley. In fact, part of the character of Isaiah Bradley is that he retired to be more grounded. It would sort of betray the character to have him all fanboyish towards Falcon.