I'm very eager to team up with someone like Gaius or Regula to go to Garlemald as a friend, yes.

I'm not terribly interested in heading to Garlemald to destroy it, though. It's one of the most interesting aspects of the setting and the game does not shy away from grey morality so it's not as if Garlemald isn't without it's own reasons for doing things.

I fully expect to ally with Garlemald at some point, especially since this game takes a lot of inspiration from FFXII.