I would answer to 1.: It is a very different society, one where the top 90% give to the bottom 10%, to one where the middle 80% take from the top 10%, eat most

I would answer to 1.: It is a very different society, one where the top 90% give to the bottom 10%, to one where the middle 80% take from the top 10%, eat most and give scraps to the bottom 10%. A society that cares for the weak does not need to fund it with taxes, it can subsist on charity. You will see that in practice, always a middle class person takes the money first before it goes to the person that needs it.