I’d actually argue that Trump comes from the real estate bourgeoisie but I agree on the Biden characterization. Biden never saw an MBNA donor contribution that he didn’t love (like in 2008 when he sold all future generations out for a $250,000 payout from MBNA).

I just don’t see how real estate wealth translates to industry. In general, many of Trump’s areas don’t fully align with the Republican establishment who, in my observation, generally are from real estate, energy, and industry as you mentioned.

Thinking about it more, it seems like real estate has a lot of overlap in both parties.