While there are many other proposals, that kind of tax policy change would, in itself, definitely be a big change. I encourage people to use this calculator to determine your effective tax rate at various times in the past. If your family is like mine, reverting to the tax policy of the 60s and 70s would be a very large hit to us every year.

https://qz.com/74271/income-tax-rates-since-1913/