So currently in the US, job growth numbers have been in sharp decline for the last 5 years with negative growth some months of 2025 and 2026. If AI replaces 30% of the workforce those displaced workers won't have other jobs to transition into, so they would likely become long term unemployed. It would vary drastically state by state, but it's reasonable to assume bluer states would pursue legislative goals like extending unemployment benefits for worker displaced by AI or universal basic incomes, redder states likely wouldn't and instead off taxpayer funded incentives for more AI job destruction.
AI replacing jobs would actually create a minimal amount of new long term jobs to service the AI and the hardware it runs, but that would generously be maybe 10% of total jobs lost.
History shows us that in times where people in their 20's and sometimes 30's are our of work and desperate, civil unrest ensues. The redder states that opted not to extend unemployment or implement UBI would see the brunt of it. Naturally they would increase funding for law enforcement, pass new regressive laws around protesting and civil unrest, and try to increase funding and numbers for the national guard.
As desperation grew many would migrate from red states to blue ones creating an influx of new residents the existing systems might not be able to support. It's likely you'd find more permanent or semi-permanent homeless encampments and/or vehicle dweller gatherings.
A massive cut to jobs would look a lot like the great depression with increased interstate migration and large numbers of desperate, unemployed, and homeless people looking for security. In the 1930's we created a massive public works program to end the great depression, with today's politics though, we probably won't be able to pull something like that off again.