Systemic - to me at least - means it's a matter of law, thus it affects everyone. I prefer to think of today's instances of racism as an individual/collective (by collective, I don't mean LARGE numbers necessarily) occurrences, rather than systemic. Assuming you aren't looking for perfection - which means no racist thought/word/deed in anyone in the USA - including non-whites who can also be very racist, fyi - then I'd say racism is on the whole pretty rare.

On the other hand, I do believe mental slavery is more prevalent than individual/collective racism :).