Call your state legislators and insist they approve the Article V convention of States to propose amendments.
I pledge allegiance to the Constitution as written and understood by this nation's founders, and to the Republic it created, an indivisible union of sovereign States, with liberty and justice for all.
A wealth tax is an interesting concept and in it's purest form I might possibly support because of the tilted table and the unfair playing field the super rich have created. Hell I would think all these liberal super millionaires would be happy to donnate 20%.
However, in our current political state that money would not be used for the good of the country as a whole. It would be used to buy votes and pay unowed ancestoral debts and of course to grow government in the process. The other problem would be that once we accept such a thing we could never trust them to leave it at 20%
Instead we could just eliminate the loopholes including capital gains and actually tax those making 7 figures what the tax rate says we will. If we are going to continue with our antiquated graduated income tax as the way to raise funds for government then we should do it right. This wouls also mean less influence for congress to sell.