Re: AI Construction workers and labourers?
Agree almost completely. AI development companies are already doing deals with robotics development companies, to combine the two.
As skills are honed by real world experience they can be pushed to any AI-enabled device, which is where the business model probably anticipates revenue streams from subscription services (remember BMW and seat warming subscriptions? It was shamed out of existence but it's inevitable).
3D printing of just about everything - including buildings (which look pretty unfinished these days, but that will improve), food, biological tissues, you name it, someone is working on it - will impact broad swaths of currently human-reliant jobs.
IMHO the next 2-3 years will see upheavals the like of which we have never seen before, and hardly anyone is prepared, least of all legislators.
Universal Basic Income is a must, as is Universal Healthcare, but authoritarian regimes will never implement those. The result is probably going to be massive street protests, and concomitant carnage in some countries.
Inevitably things will get worse before there is even a chance that things will improve - and by "things" I'm thinking of Life in general.
IMHO the threat to humanity is not so much AI and robotics, but that section of humanity that steadfastly refuses to believe there is any threat at all.
As for warfare, check out the Hellhive and drones. If Ukraine and Russia can do this, so can well-motivated terrorist groups, whether domestic or located on another continent.