I think there are too many racists who won't be willing to vote for Vivek in the primary when it comes down to it, though. He hasn't even pulled a Nikki Haley and pretended to be white, and I know that bothers people. I've read some comments that are super gross but also positive(ish, racism is never positive, really) for anyone who opposes him for being a shitbag.
Right. In order for the grift that Vivek is trying to fully work, he has to be a white male cishet xtian. He does not check all of those identity politics boxes so it's only going to work for a sliver of the GOP.