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In the same vein that Steve Rogers represents American exceptionalism, yes, his character is racist. The key difference in their characterizations, though, is that Steve spent a long time becoming disillusioned with his role and being extremely careful about what he stood for. https://twitter.com/SkyRaiderG7/status/1388182409372446728
Steve never murdered anyone, much less in broad daylight in front of a crowd, using the literal symbol of his American authority to bisect someone. However, he always had the POWER to.
The way John Walker basically got away with a slap on the wrist and got put right back into military service demonstrates that inherent authority. Steve Rogers could have acted unilaterally (and often did, if more nobly) and suffered little to no consequences.
In real life, this is how the US military (and police) work, and in real life, their actions are DRIPPING with racism, the operant condition for that being who suffers the most harm from those actions. Those are wildly, disproportionately, people of color.
So while John Walker didn't perform any explicitly racist violence, what he represents, again is racist, and that applies to Steve Rogers, too. And now it applies to Sam Wilson, which I guarantee won't be as nuanced of a conversation in these movies as it should be.
