I’ve had to have those seminars reframed to understand them. They aren’t meant to actually increase diversity, equity, or inclusion. There are policies meant to be read and understood, and there are policies meant to be pointed at. Those seminars are like the sexual harassment seminars. They aren’t thinking “now that we’ve informed you of how to not act like a sexual predator in the workplace you’ll be more prepared to behave yourself.” They’re making you take that seminar so that way when someone tries to claim that they didn’t know they couldn’t tell their coworkers about their genitals at work you can point to the sexual harassment training you gave them. These dei lectures are about liability.
As mentioned elsewhere it’s a line from a TV show. I’m not going to try to determine what type of humor it is, but the joke is that an incredibly charismatic psychopath has been trying to kill Bart, the local troublemaking kid. The psycho is claiming it’s all a misunderstanding and the kid points to him having a tattoo that says “die bart die”, which is explained as being German for “the bart the” (and yes part of the joke is likely that the German is incorrect). The cops, who the show routinely depicts as incredibly stupid, believe it and add the line “nobody who speaks German could be evil” which is meant to be a further joke about how stupid these cops are.