There is a setting in Options to automatically go to the next unit. Unfortunately, there is no delay, so the camera moves too quickly in my opinion; you don't have time to see what happened at the end of the unit's move. But I think in most cases the Enter key will take you to the next item, which may include the next unit. However, it will also end the turn if that's the next item.
Sometimes it seems like the programmers making this game have never worked on a previous Civilization (or any 4X game, for that matter). It's like they're relearning everything from scratch, and Civilization isn't a series with a thirty year history,
It's not an alternate path, it's just a different way to earn points in the standard path. You get points for conquering homelands settlements.