>...Comparing what the top 10% paid vs bottom 50% is silly.
That isn't what was done. The comparison is over time. The claim is often made that the rich paid far more of a share of the taxes until Reagan lowered the rates. The data shows otherwise.
>...Clearly the top earners are paying much more in tax from a clear dollar to dollar perspective. They own all the wealth.
That is a somewhat simplistic and misleading way of describing the income tax system. Income is not the same as wealth, etc. but also the US has a more progressive tax system than just about any of the OECD countries. The top 10% in the US make about 33% of the market income and pay 45% of the income taxes:
https://taxfoundation.org/news-obama-oecd-says-united-states...
>...One solution is to just jack up the rates. If 90% marginal rate on paper only actually results in 45% being collected, then that's still better than 39% marginal rate on paper vs. 15-20% truly collected.
There are reasons NO countries institute such policies for long. It isn't because high rates haven't been tried, it is because it ends up hurting the country. You need only look at France's experiment with a 75% marginal rate and a wealth tax in 2012 and was dropped in 2015.
>...French economist Eric Pichet in a recent academic paper has found evidence of capital flight as a consequence of the French wealth tax, namely, that it has cut French GDP growth by 0.2% per year.
https://www.forbes.com/sites/jonhartley/2015/02/02/frances-7...
>...But there needs to be a constant effort to reduce wealth centralization.
This probably isn't the only criteria that people should be concerned about. If the top 50 tech companies in the US had been started in Europe instead of the US, that would have measurably lowered the wealth inequality in the US but most people would say the US is better off being a tech leader.