There are many problems with this argument; but it's 11pm and I'm sleepy, so have the first one that came to mind.

Those countries don't have a lot of wealth per capita to begin with, so it's not a goddamned equal comparison.

Do you know which one was more equal? USA in the 50s and 60s, when the tax rate for rich people ranged from 70% up to 92%. A time period where regular people could also afford to live comfortably (family and house included) with a regular job.

Sorry, your arguments are just bad and only show your ignorance.