It all boils down to nerds trying to make themselves seem useful so they can get positions of influence within campaigns and the party apparatus (to the extent that exists) to ensure lucrative careers. In a properly-functioning party these people would be treated the way Ryan Gosling treats his quant in The Big Short (but without the racism).
If anything, he's handling this issue much much worse than Christine O'Donnell handled "I am not a witch." E.g.
He handled the reddit posts much better and much more in line with the type of response that would appeal to Democratic primary voters. This whiny shit here? This is what works in the Republican party.
He just lost his second campaign manager in as many weeks and several additional reports have come out making it clear he's lying about the tattoo. You really want to bet on this guy?
I dunno if Carville had any actual involvement, but his endorsement sure doesn't help them in my eyes. I think the bigger problem is that this is just more of a certain type of Dem strategist pretending that politics can be Moneyball'ed and they're all Billy Beane. Like this shit was just Biden's presidency and then Harris' campaign (remember how much Carville praised her for running to the middle?):
I love it when small government types are like "to shame and punish poor people I want us to establish the largest and most powerful bureaucracy the world has ever seen."
Yeah, I keep coming back to the fact that Biden really did believe in the political efficacy of materially investing in left behind areas and Dems did that under Biden. Most of the infrastructure and manufacturing investment was disproportionately targeted to exurban and rural areas. Hell, deaths of despair in rural areas even began decreasing under Biden. But rural folks if anything hated Dems and minorities even more by November 2024 than they did in November 2016. It's real hard to remain sympathetic.