Anyway I made it clear in that comment that I knew Zidane quit Tantalus, and therefore originally worked for Baku.

As for kidnapping just because Dagger wanted to leave doesn't mean it's right. If she hadn't wanted to they still would have done it.
Even if she did not Cid wanted to get her away form her mother. So Tantalus was going by Cid's orders. Zidane works for Tantalus until the point at whcih they will nto go save her but he will.

And Garnet's mother was not to worrierd about what happened to her.