I think you agree so I'm speaking to Linux, BO&W, etc., but this also means not validating their culture war bait. It doesn't mean throwing trans people, gay people, minorities, immigrants or whoever under the bus, because that (1) tells your base you don't believe in the values you profess (and depresses their turnout) and (2) tells undecided voters that Republicans are right about those issues and their importance.
Not long ago DEI was just some corporate CYA shit so if a company got sued for discrimination it could go "but we had this antidiscrimination training!" to avoid legal liability. Republicans seized on that and were able to make it a huge culture war issue because (1) the media knowingly helped them and (2) Dems had no idea how to respond because too many Dems' instinctive reaction to that shit is to say "Republicans are right about this!" and run away from it. The obvious response was along the lines of "they're lying about anti-discrimination training that's been going on for 30+ years to distract from their goal to [slash medicaid/eliminate social security/etc.]"