Why are you more concerned about the ‘trauma’ of a 4yo having 2 homes, than the actual trauma of a child having no home
I'm concerned about them both. They're both children, both are shit situations, no one trumps the other.
Neither option is acceptable and so therefore the 4yo will have to have 2 homes.
Yes, by OP choosing his teenager over the 4yo he will have 2 homes, yes. That is true.
If there is any negative impact on the 4yo from the parents separating, then this is from the wife because she’s the one who isn’t happy and wants to leave.
I doubt the 4yo will care about who is responsible, the outcome for him is the same.
But the 4yo will be fine like every other child with separated parents.
Like the teenager, right? He's totally fine.
I don’t know why you’re so desperate to make this about the two kids.
Because there are 2 kids involved. One is not more important than the other. We've been over this.
If you’re so concerned about the 4yo and their trauma from the parents separating, then you’d be more angry at the wife for wanting to leave.
Again, it doesn't matter who I'm - or you, stranger from the internet - is more angry at. The outcomes for either child will be the same, irrespective of which adult you 'blame'.
But instead you’re trying to twist it into a completely different scenario, just to make OP be in the wrong
I've not said OP is in the wrong. What I do think is 'wrong' is the assertion that his teenager automatically comes above all else, including OP's other child. Because he was born first? Because he was there before OP left and started a new family? That particular crime is not the 4yo's fault - and however much you dismiss the consequences of leaving his family home as 'not that bad' that's not really your place to say.