Yes. In fact, that's exactly what I said.
It's also worth calling out the sheer madness of equating height discrimination to racism, and pretending not to see the problem.
Again, this is exactly what I am saying.
I am also saying that you go further, and engage in an intellectual slight-of-hand. This happens precisely when you say "there's really no difference [...]".
Yes there is. There are several, important differences that render irrelevant their belonging to the same category. Abraham Lincoln and Pol Pot both belong to the category of "heads of state", but it is laughably incorrect to claim that there are no differences between them. So too with your example.
That's the difference between anti-short and anti-Black, not the anti-ness itself.
I'd ask in what way the point you're trying to make is useful, either analytically or rhetorically. I don't see how it is offhand.