And if you can do that job from home, so can someone on the other side of the planet for a fraction of the cost.
Already happened.
And they are moving BACK, because those guys across the globe either can’t do the job, or the job has no value doing.
Yes and no. Sure, the bean counters will say that, because one warm body is the same as another warm body to them. Technical and institutional knowledge, combined with a willingness to take 'ownership' of a platform are force multipliers. If you have someone unwilling to take ownership, and responsibility to make sure that everything is up to snuff, they are worthless and in the end will cost you money. I don't always 'work' 8 hours a day, sometimes it's less, sometimes it is a lot more. Depends upon what is going on. In the end my boss just wants the job done, and done right, because screwing up can literally cost them millions of dollars.
I use offshore folk to do rote work that keeps me from having to work every night and weekend. I simply do not trust them with anything complex because they have made no effort to be useful to me.