Because whether or not it’s right this is the way most americans think about blacks. Same with them characterizing that all Asians are yellow skinned with slanted eyes. You may not like it and it is racist but there it is. You cannot talk about racism without actually giving examples of it. Not sorry if it’s offends you.
You weren’t giving examples of racism. You said, “Kamala Harris is an American Black as far as I’m concerned. Not a ghetto raised hip hop black, but a black American.”
Speaking for my family: yes, there is a reason we felt uncomfortable marking those boxes. Last century, my marriage would’ve been illegal and/or renounced my citizenship. Things have improved since then, but as recent politics show, nothing is secure. We answered our races and ethnicities as “American”.
On the other side - if you don’t have that information then it’s much, much harder to detect, track, and fix a problem because you’re missing the statistics.
You seem to be confusing ‘stating something’ with ‘defending something.’
I am not saying that East Asians are the only ones who should be considered Asian-American. I’m saying that that’s how it generally is - that in general, when someone says “Asian-American”, they are referring to East Asians specifically, not Arabs, Indians, or white-skinned Russians from the Asian half of Russia.
It is a simple and unfortunate fact that many Americans do, in fact, discriminate according to what they perceive as race. By the standards of most such people, both Kamala Harris and Barack Obama fall into the category “black”, and are treated as such. We, as a society, would like to decrease (and hopefully, eventually eliminate) this discrimination, but in order to do so, we need to first be able to detect when and where it’s happening. And one of the ways we detect it is via forms like the one in the Census where people are asked to report their race.