you just helped him convince the stupidest non racists around that he’s not openly racist.
I think you greatly underestimate the amount of racism in the U.S. and the amount of people who will tolerate a racist even if they don't really have any racist feelings themselves if they think it will get them some sort of benefit.
Trump appealed to both.
I don't think anyone was under any illusion that the "when Mexico sends its people, its not sending its best" speech was anything but racist.