Crowder is the guy from the "Change my mind about ___" memes, the original was about white privelege irrc. Crowder made his original fame and money by "debating" freshmen college students, just like Shapino. Unsurprisingly he "owned" them, as often these are freshmen not prepped for debate or particularily knowledgable about their claims and Crowder would just edit it for the best performances of him - occassionally he would start to get owned and he'd act much he did on the h3 podcast.

Seder is a political commentator that started out in 2010 with his show. He can be pretty lib, but if all libs were like him the world would be a lot more tolerable and better. He hosted Michael Brooks as well.

H3H3 is hosted by Ethan Klein, mostly about poking fun at internet weirdos. Hes more like an apolitical/lean lib guy.

Crowder has been ghosting debating Seder for a long time. The last couple times I remember was during politicon, Crowder was invited and so was Seder. Seder had a condition that he gets to debate Crowder, Crowder was told this and he stopped responding to organizers. He was also set to do this with H3H3 last week, Seder cut his show short and Crowder bowed out suddenly saying his wife had medical issues.

Then yesterday happened, Crowder went back onto H3H3 even though Ethan Klein pulled almost the same shit last time. Seders show kept running, because they recorded an episode and pretended it was live (like oceans fucking eleven). In response to this, Crowder cut to his dad and said some ANCIENT anti-semetism shit right away (something about how Seder didnt have a soul and his eyes looked like the velveteen rabbits).

Crowded persona and money is made off of seeming to be an invulnerable debate God who is super right wing/alt right. If he loses debates or loses his cool, he will lose followers and money. He knows this, hence why hes avoided it so hard.

Also, it's just funny to see a guy who is visibly strapped up get so scared that he got his Dad to come comfort him, all because Seder appeared to debate him.