The question that immediately springs to my mind op is why on earth should you accept it?
I haven’t read your previous posts about this and your op is confusing.
On the one hand you say that you have never found yourself in ‘significant” financial difficulty?
And in almost the same breath you mention that you are “panicking because we have a big bill coming up and not entirely sure how we'll pay it?” And that you cannot accrue savings? And that you are receiving red letters from the bank?
So which is it?
It sounds to me like you clearly are already in financial difficulty, and are storing up significant financial problems up for yourselves, if you are starting to worry about paying big bills and you don’t have any savings if something goes wrong eg your boiler blows up in mid-winter!
So point one is that you can’t begin to approach a problem correctly if you deny the reality and seriousness of it in the first place!
You know in your heart that this situation is serious and it is not sustainable. It will catch up with you eventually and will cause you endless stress in the meantime!
How old are your dc op? You need savings to get them through university or some form of higher education. You need family savings as back up emergency funds in case one of you can’t work. You need savings to contribute to private pensions.
You love your husband and so you are telling yourself you must accept his behaviour and somehow you will all muddle through,
I’d like to know op why in your head you have arrived at a place where you think the best course of action is acceptance?
Is it because he is the bigger earner?
Or is it because there is some sort of unequal power dynamic within your marriage?
Or is it because somehow he has gaslighted you in to thinking your values don’t matter as much as his?
Or is it because you have tried to resolve this a thousand times and he won’t change his behaviour and you know that your marriage will be in danger if you push any harder?
Or he has some sort of coercive control over you that you daren’t challenge?
Your dh is damaging your family op! What are you going to do about it?
I don’t mean to sound harsh because my sympathy is one hundred percent cent with you. This situation must be beyond stressful. He is playing with your family’s safety and It’s utterly irresponsible.
It sounds like you have tried and you can’t change his behaviour, so the only thing left is changing your reaction to it, and you know what this means in your heart of hearts, and it’s crunch time, and instead of challenging him and confronting the situation, you’ve decided that burying your head in the sand or “acceptance” is the better plan.
I hope I’m wrong but that probably means he is unwilling to ever change and that leaves you with an inevitable dilemma.
One bit of advice op: love is not enough and it’s one thing putting yourself in a precarious situation, but please don’t accept it for your dc.
Why on earth are you reluctant to ruffle his feathers when he has no conscience at all about totally flattening yours?
Here’s a link to information about coercive control just in case you need it:
https://www.gov.uk/government/publications/controlling-or-coercive-behaviour-statutory-guidance-framework/controlling-or-coercive-behaviour-statutory-guidance-framework-accessible