So it seems you read this first part and stopped right there, because what I say next changes the entire meaning of the text. Please read everything, and if you still don't understand, ask me, and I'll be happy to explain.
You really need reforms in your structure of power and the way elections work. Starting with dividing the current presidential power between a Prime Minister (or Chancellor) and a President.
The planet will survive just fine, it has been through worse cataclysmic events, but humans may not be able to keep up with climate change and disappear along with other contemporary species.
The problem is that humanity can be wiped by the actions of a handful of individuals with the connivance of a majority. What you are proposing makes no sense at all.
Trump will be POTUS forever. The face generated by artificial intelligence as the spokesperson chosen to represent the interests of the oligarchs who actually rule, before the general public.
So it seems you read this first part and stopped right there, because what I say next changes the entire meaning of the text. Please read everything, and if you still don't understand, ask me, and I'll be happy to explain.