in so far as the dominant political parties in the US have positioned themselves as part of a discrete set of consumer choices that white people make and confuse with "having an identity", it's pretty spot on.
kind of like how little kids can identify corporate logos, this is taking it a step further and having an "outsider" identify the demographic for our consumer identities by splitting them along party affiliation.
I mean, the white lady in a ball cap being a Democrat is kinda strange, but I sorta know what they mean too.