Saying that the left spends too much effort on rhetoric might be valid criticism, but focusing on it as reasons to "walk away from the left" (which not too many black Americans are doing, BTW) is disingenuous. Sure, the left talks about rhetoric, but it also fights for higher wages, civil liberties, healthcare, affirmative action, investment in education, workers' rights, and voting rights. It's fine not to like ever…
It’s pretty hard to measure such a statement, but I noticed that Trump won 8% of the black vote in 2020 and 6% in 2016. [0] And it seems Romney won 6% in 2012. [1]
It’s not smart to extrapolate some trend from these three data points, but I don’t think its accurate to dismiss claims that this isn’t happening. Comically, dismissing the claims of a literal black person walking away from the left speaking of others in vis community is sort of like what the author is saying happens with people patronizing black persons and making decisions for them (eg, “it’s not happening” and “master offends you”).
[0] https://www.vox.com/2020/11/4/21537966/trump-black-voters-ex... [1] http://ropercenter.cornell.edu/how-groups-voted-2012