Your position is that there is no difference between a fetus and an adult.

My position is that you can't have a say over someone else's body unless that body lives inside of you.

If you can kill one for your convenience you should logically be able to kill the other.

In our case the life living inside another one can kill its host at any time. It threatens its existence.

Pretty straight forward mate.
So to summarise

1-Your body, your business, your property.
2- You can kill anything, anytime, if that thing lives inside of you and threatens your own life.

Sorry but you can't twist the religious component any way you like. In your cult you can practise anything you want. let others be.