Probably the most naked example of the way "DEI" has become an all-purpose racist slur is in referring to Harris as the "DEI Vice President". VP is an *elected office*. She was voted in on the ticket, by, you know, the voters. She wasn't snuck into the job. She was elected to it.
When they say "DEI", they don't mean affirmative action. They mean anyone other than white guys having any kind of power or responsibility, no matter how competent and deserving.