Admiral Janeway's selfish history-changing plot in Endgame was exchanged for a heroic history-changing attack on the Borg. Genocide of the bad guys is the kind of history changing everyone can get behind.
(The Admiral dies for her sins, what more do you want, gang-rape? Captain Janeway, like all of us, has the right to change her future.)
Yes, Fist Contact was a dumb space vampire (not mindless zombie, get the facts right!) movie. It was still the only re-watchable TNG movie.
As to the new Star Trek movie and concerns with continuity, as I recall there some tedious persiflage in the new movie that rationalizes that. Doesn't help the movie a bit. In Star Trek, Spock was the cool character and Kirk/Spock was such a famous friendship it inspired slash. In the new Star Trek movie, Kirk is the cool character and Kirk viciously attacks Spock, which we are supposed to believe is the foundation for a new famous friendship. Plus, Star Trek improved the believability of the setting and premises, while the new movie invents new offenses against plausibility.
Driveling about how narrow continuity has never been part of the Trek phenomenon misses the direct opposition between the two Star Treks. No doubt the completely white, completely non-geeky guy being the cool one is more popular. And no doubt adolescents of all ages feel like friendship is like being accomplices in defying the 'rents and the teachers, so that getting all drippy about each other has nothing to do with it. But as much as you might like the takeaway from the new Star Trek, the only thing it's got to do with the old Star Trek is Leonard Nimoy.