It's impractical to educate a population in the way you want in a short time.
I think it will take 20 years to build the TDG. Early TDG builders need not get any permission from the Trump supportors.
When the TDG is built, all the Trump supporters can still vote. But their vote will go in a more positive direction as they will be voting for someone of good character and capacity in their neighborhood, not some reality TV star. They will be casting a much wiser vote than they are now.
So 20 years to build the TDG vs. X years to reform the education system to create a better voter.
I would put my money on the TDG. I just need to find that 1%.