Katanaman
Yes, the family is important, because if I cannot predict my life style and it turns out to be a nightmare, there will be no family to return home to, so this has to be top of the list when making a move to another company.
Very true.
As Dan says
The whole reason for the Unified FO is so that they can crew the freighter, so yes, you will be flying the freighter A LOT.
I wouldn't put much trust in what CX tells you. In fact, assume the opposite
Does this sound like you will maintain your family lifestyle?
If this is what you want to protect then you are better to stay where you are.