> Sexism in tech and the workplace are real problems, but I don't think a slide with a woman in underwear is a good example.
You're dismissing a real problem here. Sexism is not isolated to acts of discrimination, it is a part of culture. Fixing sexism is not just about stopping discrimination, it is about changing culture. We bombard kids with pictures of sexy women in bikinis and men in lab coats, and wonder why there aren't as many women in tech even though they're so damn competent at it. Showing pictures of women in underwear in tech slides sends the message, "women are for sex, not tech". Don't hyperbolize this by calling it the "asexual approach".
Imagine putting on a clip from a minstrel show in your presentation. Horrifying, right? But you're not actually being "racist", you're just being "racy". Maybe you think the "aracist" approach is impractical. Maybe a bit of harmless playfulness about "negroes singing songs and working on the railroad" should be encouraged. After all, in American corporations, white folk are routinely told that they cross the line when they compliment a black man on his natural sense of rhythm, or his large penis.