When upper-class wealthy people don't want to date anyone lower, working, middle or even upper-middle class people will claim "classism", but when middle-class or "normal" people claim they don't want to date a retail worker or janitor, no one has an issue.

I find this a tad hypocritical. You can reject and not want to date anyone for any reason; hell, you can choose not to associate with a group of people for whatever reason, but I have a problem when people reject people based on finances, looks or any reason. But when someone from an upper-class millionaire family says, "Ew, I would never date a middle-class person; they are poor," people have an issue, but if a "normal" person says they won't date a retail worker, no one has an issue.