I didn't ask you to expatiate about whether "racism has been eradicated from the US," I asked you what the basis was for your charge that over 30% of people who want to stop illegal immigration are motivated by racism. That's a gross, unfounded insult, and you should not be allowed to get away with it any more than someone writing a racist post should. If you can't or won't answer my challenge, believe me, I won't be a bit surprised.
It is a guess. And the 30% number was always presented as a guess by me. I am allowed to guess. I never accused any particular person. I never accused you. It is not an insult. You are hyperventilating about nothing. If you have another guess, then say it. If you have proof the 30% number is too high or too low then show it. I will say that the number is definitely larger than zero and if you insist the number is zero, you are crazy.