You are doing what i have predicted : as cognitive labor cost tends towards 0, white collar will flood to a considered safe heaven:the manual work space.

But(to be seen yet) when the wave will be too big, the wages of even thatmanual sector will be reduced and there will be more competition & demanding job: even the bricklayer will have a master degree.

And last stage, when robot will get cheap & AI resolve all the current issues around physical world, the manual space will be impact.

Nobody is safe in mid long term.