By now it should be obvious. Boomers are acceptable targets, so they don't get protection.

What pannSun said. Some target groups are acceptable, others are not. The same sorts of people as come up with these will easily call black people Uncle Toms and other fun things if they happen to have the wrong politics. It's ostensibly about taking others into account and being kind, in reality just conformity to their political ideology and not much else. These sorts of word lists are just compelled speech to force obeisance.