It's eminently possible for the original poll and Adams (and the Mercury News for that matter) to all be fanning the flames of racism.
I'd even go so far to say that it's highly likely.
Why equivocate to one side and assume the worst from a poll?
By your reasoning, it's "possible" he was correct.
FWIW, Adams conditioned his language with similar reasoning ... See the "If"
You don't want to arbitrate, but also want to posture with "everyone's shitty here" with a bias that even the poll is biased.
I don't get it.