I feel stuck: Finances and husband

my husband and I have a beautiful 15 month old daughter. She deserves the best in the world. My husband was earning the most and I was at home. He was doing really well and eventually got complacent and stopped making any money. This was all when I had just given birth. Basically in a nutshell, I realised I was in a total dark, he did not earn any money for a long time, had unpaid debt and tax and just ownings. It has not come to a point where We both have to get a job to support the family, all of his earnings go towards his debt repayments and I support all expenses. My parents are supporting us financially at the moment too. He cares less He has just become angry, minds his own business and does not even spend time with our daughter or cook for her or even concerned. I am tired. I want a happy family but i see how unplanned he is and the way his parents didn’t do much for him he is doing the same for my daughter. His family has also given me so much pain. Throughout the pregnancy and after. I blocked them and have asked them to not to contact me again. But through all of this my husband was just quiet. He said nothing to them. He nicely let them walk all over us. He realises now - but the damage has been done. I feel stuck. I don’t know what to do. I don’t want my daughter to be at the receiving end of any of this. If I say I’d leave you m, he says okay 👍🏼 I don’t know how to get out I am not able to . I don’t even know if this is the right thing to do. Sorry for the rant- but I need advice