It would, however, be more convincing if you were, for example, show 4 or 5 major polls that show much lower support. I'll go first with what I found in a 30 second Google search:
"A
New York Times-Siena College poll from October revealed that 22% of all Black voters in six battleground states ― including my native Michigan ― would support Trump in a general election if it were held at that time. Black men seem to be leading this charge: Trump secured 12% of our vote in 2020, up from 8% in 2016.
Considering that the Trump supporter archetype is that of an American-flag-shirt-wearing, far-right white wingnut from Middle America, it’s both frightening and sobering that, even with the information we have about Trump, nearly 1 in 4 Black folks would vote for him in states that matter."
Now, you COULD scream about the source, and clearly 22% is less than 30%, but go ahead, ask me where that came from. Oh, the heck with it, you won't. it came from here, a source I hardly believe is supportive in any way of TRUMP!:
Opinion: The Sad State Of Affairs When Black Men Stump For Trump
See, instead of just screaming about a source, you could post numbers that you think are more reflective of reality for discussion. Which do you think is more realistic, 30% or 22%?