As others have said, your wife can't force you to believe - God gave men free will, and you need to clearly make her understand that.
I fully believe that Jesus wouldn't attend any Christian churches if he was here today. They've manipulated their doctrines so much into his teachings, that they have little to do with Jesus.
The immediate things that came to mind (aside from you saying you were being forced) is that she's going to a church that claims to following the example of Jesus, yet immediately, she's brought dissension and negative coercion into the house. There is conflict between the two of you, talk of divorce and bringing fear for their future to your children. This is NOT what Jesus would do, so she's taken a church doctrine and trying to make it what she lives by. (Can't be hooked up with an unbeliever) What's she going to do next, have the citizens of the city stone her kids when they do wrong?
How much sense does it make that she's supposedly learning about a loving God and the first thing that happens is she decides to either convert her family or destroy their relationships. That's not God, it's not Jesus - it's a church trying to add lambs to its flock.