What's the craziest thing we just take as granted?

https://sh.itjust.works/post/1326920

What's the craziest thing we just take as granted? - sh.itjust.works

Unearned income is taxed at a lower rate than earned income. I mean, pretty much everything about capitalism tbf, but that particular thing is saying the quiet part out loud and it still gets almost no attention.
A flat tax system would resolve a lot of this.