The 16th, 17th and 19th Amendments are not going away.
The path forward is to limit government power.
Fighting now in Congress to place middle class income and real property tax caps into the Constitution would add the electors of several deep blue states to Trump’s total and make Congress turn deep red come November, with the middle class being defined as persons having income in the range of federal civil servants.
I don't see that happening. Eventually, we will become like the Soviet Union.
It's possible that we may end up like Brazil but I don't think so.
It's like patching computer code - often does more harm than good.