You're a good man TLB.. To pray for those who have strayed..
But to convert others by force has been tried.. Many, many times.. Look at Moses and the Egyptians.
Worshiping God for the right reason is the goal. You cannot acheive this by force..
If you want to convert someone from a false God you will have to convince them that Christ is the one and true savior..
Merely forcing the motions on them is not enough..
It's their motivation that counts, because God knows the heart of every man..