Ultimately it's helped far more people than it's hurt. It's given us medicine, it's given us affordable food, clothing and incredible technology. To the extent that I can comfortably say I'd rather be lower class now than upper class just a few hundred years ago.

"...increasing every time."? I doubt that. I don't think we'll ever see a dislocation like we saw with agricuture in first world countries, where an occupation that employed 95%+ of the people is now done by something like 3% (depending on how you measure it).

Why, you're in luck I guess, that should happen again within the next two decades. Thankfully (or unfortunately?) the world is more globalized than ever, people will be moving all over the planet.

I doubt that, too. People will continue to move from the countryside to cities within their countries, but the days of mostly open borders are probably coming to a close.

Communists are dreaming of the revolution since 1848, it never arrives.