Hard manual labor is good for the soul, and for the body.
I have done it and have seen others do it (street-sweeper, soldier, factory worker in three industries), and I disagree.
There are some jobs that aren't going to be replaced by machines for a very long time, simply because the technology doesn't exist.
For the previous century, progress in this area has worked approximately like this:
1. Car is invented.
2. Buggy-whip makers, grooms, and cart-drivers lose their jobs. However, far more jobs are create selling cars, fixing cars, and driving cars, as cars improve everyone's productivity and wealth.
But I suspect very much - and many people who are far smarter agree with me - that we are expecting a different paradigm now.
Now it will be... 'journalist is replaced by financial journalism software' (this already exists), 'journalist attempts to find burger-flipping job, job has been eaten by robot burger flippers', 'journalist attempts to find job as a truck driver, job has been obviated by driverless trucks'.