Let's say they succeed in impeaching him. What would really happen? Trump won the majority of people in the country with the single exception of California, which is indeed La La Land. They would be the sixth largest economy in the world by themselves, but California does face some very serious economic issues. The majority of its economic growth has all been concentrated in Silicon Valley and San Francisco, leaving the state vulnerable just in case the tech economy sours. This is also creating a much wider gap between the rich and the poor than in most other regions in the country. When Southern California gets tired of complaining about Trump, you will see them turn against the North, demanding their money to pay for their lifestyle.
If the left were to succeed in getting rid of Trump, you will see the silent majority who put Trump in office because all they see is a constant dwindling future with the highest taxes and a declining standard of living suddenly not be so silent. They are NOT going to take this abuse of the left anymore by people who just want to subjugate them and destroy the future of their children. The economics behind what put Trump in office is only going to get far worse.