Wealthy people get most of their income from capital gains, which is taxed entirely differently.

Because we can't possibly change how it works so that we can tax capital gains too, right? Give me a break.

In a world where nobody is threatened by poverty or hardship, having a hobby of collecting diamonds doesn’t hurt anyone.

Keep living in fantasy land. How do you think something like that will be achieved, if people are allowed to hoard as much money as they want? What is the incentive to do any good if greed is celebrated and never punished?

someone just repeats what they see in memes

You're just a centrist neoliberal. What you're suggesting is literally what has brought us here.

it’s hard to take you seriously

The feeling is mutual.

Also, when someone starts to dish out personal attacks unprovoked, it's a dead giveaway that they don't actually have a point.