I think your reading is in fact over-charitable. He is clearly referring to “weird creatives” as people who behave oddly without explicit negative effects, and is trying to argue that oddness has some diffuse, unobservable cost on society; if they are simply (creatively) stealing there would be no need to argue this. I think it’s also important to remember in these discussions that there’s often skin in these games. Trying to find baileys to which bigots can retreat might promote dialogue and openness that results in wandering truth-wards, but may simply spread misinformation. It’s worth flagging that there’s more than 50 years worth of consistent evidence that children from same-sex families do as well as [1, 2, 3], if not better [4], than those from straight families, and his statements based on weird extrapolations from straight couples contribute to their marginalisation. In this specific case, Peterson is explicitly arguing against updating in the face of evidence and arguments (“conservatives do things because it’s how we assume we’ve always done the and we can’t be expected to remember why”), which breaks a lot of otherwise good Bayesian argument advice.
[1] https://www.tandfonline.com/doi/full/10.1080/1550428X.2013.869486
[2] https://www.tandfonline.com/doi/full/10.1080/15504280802177615
[3] https://pubmed.ncbi.nlm.nih.gov/12361102/
[4] https://psycnet.apa.org/doiLanding?doi=10.1037%2Fsgd0000203
Agree on the first point. On the second point, my comment doesn’t rely on Peterson arguing in bad faith, merely that he is arguing with excessive faith in his priors—Bayesian reasoning doesn’t work if one person has 100% confidence in their initial position, and may be very inefficient if you have extremely strong priors and don’t update well. He may sincerely believe that same-sex families can’t bring up children properly, but if his position is unlikely to change much from the argument, the social effects of how you engage with it (the effects on onlookers who may be insulted by the argument or marginally update towards his viewpoint) may be larger than the benefit of his marginal update.