Did the Democrats lose the working class because they were too far left, or too far right? What even is the working class?

In the aftermath of the election, I'm seeing a lot of left wing political pundits, YouTubers, and Redditors repeatedly make the claim that the Democrats "lost the working class" due to the Harris campaign and Democratic party bowing to centrists, caring too much about the establishment and their corporate donors, refusing to take a stand against Israel, etc. There's lots of accusations that the party is nothing but "controlled opposition" to Republicans and they are ripped to shreds for not being anti capitalist. Many of these circles continue to hate the party for not running Bernie Sanders and slighting AOC in committees.

This doesn't feel like reality to me. Trump ran an extremely successful campaign by demonizing immigrants, DEI programs, calling the Democrats "woke", and playing ads of Harris supporting trans people. The popular vote very obviously swung to the right wing party.

Most of the "working class" in America tends to be lower educated, blue collar families who might be more socially conservative and religious. Despite the Democratic Socialist wing of the party (like Bernie) using a lot of rhetoric involving "labor" and "the working class" to support their policies, a large percentage of this group seems to have swung further to the right towards Trump, especially in rust belt communities. A lot of this group does not care about Palestine whatsoever and has shown numerous times that they care more about immigration and trade than they do about things like minimum wage, healthcare, and benefits.

I have a very hard time believing that if the Democrats went even further to the left, a bunch of the people who voted for Trump would have switched their votes. I know there is a subset of groups like Michigan Muslim voters who did care about Palestine, and I agree that it was a losing strategy to court people like Dick Cheney, but this seems like a drop on the bucket compared to the white male working class vote and Latino vote that have overwhelmingly shifted to Trump.

What are your thoughts on this?