As a condescending jerk, I have a hard time choosing where to start
Well, at least in the US the unions will not be much of a problem
Of the 14.5 mln union members in the US (that is in a country with the workforce of well over 150 mln. people) about a half work in the public sector - teachers, police, firefighters, bureaucrats and the like. The private sector unionization rate is under 7% - they are increasingly irrelevant for the wage setting
Minimal wages are fairly low - and if unemployment is, indeed, staggering, there will be both the political pressure to lower them further and the
de facto universal avoidance of those floors (not that I think that would ever come to ti - for a host of reasons). As for unreliability of humans - true enough, but, at least, they are a lot more reliable then machines (at least, machines cheap enough to compete with people in many occupations)
Of course, industrial production is increasingly automated - but there is so much for humans to do that does not involve imitating robots in industrial production
Now, none of this - except, perhaps, for the last point - was a serious comment (being a condescending jerk, I did not see anything serious to comment about). Ever since the wheels and the mules displaced human force in transportation (and, likely, earlier) the same argument has been proposed repeatedly - it is not new, and it is not true. It is, of course, getting more ridiculous in the age of declining fertility and increasing elderly population - if anything, I would worry about whoŽd be wiping my ass when I no longer can.