>As such, could you really say that is working long hours such is really unhealthy? Or such a terrible thing?

Yes, yes it is. It sounds like you are simply using work as a distraction from your problems instead of addressing them.

Our society is becoming more and more disconnected as everyone is working way too much. We should be working less, not more.

Less work means people can spend more time doing things they enjoy, socializing, doing things they need to do outside work, and having more time to relax and probably sleep.