There have been a lot of challenging hurdles in the last hundred years as technology has progressed. The obstacle of automation will abruptly curb our future.
Retail and transportation services will very likely be 100% automated by 2040 if not sooner. Retail itself is one of the largest job sectors, accounting for 12% of all jobs in the US. Transportation is also one of the largest job sectors, around 9% of all jobs in the US. These sectors are the cornerstone of society, unskilled labor needed to keep the under educated masses from starving. Remove these base blocks and you're looking at a 25% employment rate nationwide(4% current).
The argument for automation is that it's essentially what we did during our industrial period, moving away from sweat shops making shoes. The automation we are dealing with today doesn't create more jobs. The only sectors that will see growth are maintenance technician types and programming jobs. But for 1,000 robots that replaced 1,000 workers, only takes one technician to manage.
The idea of UBI has been introduced and while it's our best hope imo, it's a dead end. UBI would mean higher corporate taxes, higher corporate taxes just leads to immediate outsourcing, bleeding even more jobs from the sectors.
The state of political affairs are already pretty virulent, with both sides more extreme branches becoming more prominent. The polarization and violence will scale correlatively to the unemployment rate. It's bullet that's already been shot and it's going to hit you in 20 years. Enjoy yourself