No it’s not. It’s not inevitable that we get super intelligence, or even regular intelligence AGI. Even if we did, the cost of building, running and maintaining a robot to do manual jobs - I would argue this will never be cheaper than paying humans to do the same thing.
I didn't even mention AI though, but, really, you don't think automation or improved efficiencies will make human labor redundant? What about 30% unemployment, is even that feasible to you? Because that would also be catastrophic to the USA.