Class is not money - and you're making non-personal comment a personal one.
You literally said "What this belief signals most strongly to me is your class.". So that wasn't personal?
In the us of a, money is the ultimate status and often used as the measuring stick to the value of ones ideas, personhood, and everything in between.
I cannot stand it but it is what it is.
Do you remember the TV show duck dynasty where a rural family form the south became millionaries selling sporting goods?
How would you compare their socials status to a Berkeley undergrad with parents who work in the bay?