I've talked to over 500 white people who used the nword over my lifetime and yet he tries to invalidate that based on the idea of anecdote he does even abide by
If I ever actually advance personal experience as more than than an illustration of that experience by all means quote me and note the problem and I'll happily retract the point.
Now back to you.
1. While you may have an impression of a large number of white people using the word it lacks all sorts of context and using a literal number or sense of it needs larger support.
By way of, I've heard it used by a large number of whites in my life. I've rarely heard it used by a white person affectionately. And it's not a word that carries a neutral expression. But without a larger context that's just my anecdotal impression.
2. What context would we need? Out of how many people you've met in total who found the use repugnant? How many used the word precisely as an insult? How many of the sample were indifferent to the word? That sort of thing.
3. We already have better actual data on the point. A lot of it, as it turns out.
One-third of whites admitted to using it at least once or twice in a five year period, according to the 2012 Cooperative Congressional Election Study. So forget 500, a third of whites is a pretty large number.
According to a wide sampling survey conducted by Unney and Feldman of Stony Brook University, in New York, about 40% of whites in their study admitted to believing "a little or more" that blacks are poor because of racial differences in intelligence. Or, around 40% of whites admitted to being a little or more racist.
Unsurprisingly, an Ipsus/Reuters poll conducted during the President's election run found that among his supporters around 40% believed blacks were simply more violent and lazier than whites. Or, around 40% of his supporters were admittedly racist, even if they didn't believe themselves to be (an interesting and different bit of polling data). They might not be aggressively racist, but they're at least in tune with the subtler advances of those who are and who are driven by that agenda. When you take that attitude and consider the implications it's both sad and serious.
Democrats come out usually ten to twenty percentage points less idiotic on the issue, but still have an alarming number of dunderheads in their company.
The good news is that no more than half of Trump supporters have an obvious and more seriously stupid issue relative to race, meaning that at least half (and a bit more on average) don't share the dangerous lunacy of that other, strong minority of Trump supporters who are disproportionately more likely to hold racist views.
So that's some progress.