Like Elon, Sorbo has been complaining on X for days about "DEI" and "historical accuracy," re: Helen. That's what his "DEI is one thing" comment is referring to - all his past *****ing.
He then moves on to yet another grievance, accusing Nolan of "desecrating Greece" for not depicting it as colorful as it is in real life/the image on the left. Only, Sorbo is too dumb to know that Athena shrouds Ithaca in mist so that Odysseus doesn't recognize it upon his return, hence the misty, muddy look of the Damon and Zendaya (Athena) image on the right.
In other words… a perfect microcosm of this entire outrage fest, where the loudest voices have neither the knowledge, context, nor the experience of seeing the movie for themselves yet, before engaging in their endless rants (y'all think I'm bad, both Sorbo and Elon have been tweeting about this obsessively for days).
That Thanos dude is then calling back to Sorbo's DEI/historical complaints by showing Sorbo's popular Hercules character interacting with a black woman… in ancient Greece. Thus highlighting Sorbo's hypocrisy, alongside his stupidity.