No "jabs" intended, just relaying information contrary to what you said from people who also live there. Clearly it is a different experience for each of you.
Institutionalized racism like the kind experienced by people of color in this country on a regular basis doesn't discriminate against you, in fact it prefers and privileges you. So, again, I can only really repeat my question, as a white person, exactly what kind of racism would you expect to encounter except from non-white people?
If by those assertions you mean you've never seen a white person say or do anything racist, I would be astonished to learn that's true. I have experienced white people saying and doing things ranging from mildly to overtly racist many times.
I am curious about the first half of that first sentence though, "trying having not dated a black individual for more than a few years..." what exactly do you mean by that? You dated a black person and now you don't? And your experiences of racism came while you were dating that person? If so, from whom?