Minyan Gal- you’re judging too quick here.
He might be a good person in other areas, and he might be a great father to his children.
He definitely needs help, but it’s still no reason to leave him YET.
You can never know if he had some terrible experience in the past that’s scaring him away from getting another job, or if he’s suffering from depression as mentioned above.
The OP didn’t indicate anything about their Shalom Bayis being worked on here.
I wish her much Hatzlacha.