Wrong. I was trying to do something pressing (go to D'Arnise Keep). I hardly spoke to any NPCs. I did not pick up anymore companions. I kept getting interrupted by random enemies and companions within absurd amounts time. The immersion breaking portion is when you are constantly interrupted from what you are trying to do. BG2 is a game that pesters the player constantly.
Sorry, but some people just need to realize that other people find BG2 overrated or just plain dislike it. I am sure those in disagreement have the same opinion over other games. Like I said, I can see why OP takes issue with BG2. I do not think it's a terrible game; it's just a cloying annoyance to play.
Oh no! Too many things happening breaks my immershun!
Have you tried playing Myst? That might be a little more your speed.