Asking if you love your wife is out of order?
The second Commandment is love your neighbour as yourself. That includes spouses. That’s what good Catholics do.
Again do you love your wife? You already made the choice and married this woman. That time is past, for making marriage choices. doing your best for God requires building a loving family unit.
Evil destroys family units. It’s the great attack on families these days.
We don’t know anyone on the internet, yet this is a public forum. One where you asked
‘Should I trade my wife in for a new wife’. The answers on a Catholic forum are going to be about
Love,
Not using contraceptives
Being non judgemental
List goes on.
You may very well file for civil divorce. You may not have grounds for an annulment. If that’s the case, you will always remain married to this woman you feel is not suitable as a mother for your children.
Your choice is now to love your wife and make it work. Be that example. Start going to Mass and practising the faith fully.