It really must be horrendously hard to just be left literally holding the baby and having to take full responsibility for housing, and everything else that comes with raising a child, knowing you are completely at the mercy of your ex, who can choose to do the absolute bare minimum.
I saw it up close with a friend 30 years ago.
She was a professional woman who decided to keep the baby when her partner of 4 years decided that he didn't want to be a father.
Her parents were appalled at her keeping the baby and withdrew all support.
I saw how hard, lonely and back breaking it was to do it alone.
She never had another relationship and did a great job raising her son.
But privately, she 100% regretted her decision to give up her young life to raise a child alone.
I certainly wouldn't want it for my daughters that's for sure.
Just too hard.
I'm so sorry OP that he is such a nasty loser.
I wish our governments could provide practical support for single parents like the OP.
Bottom line is a supported parent is a better parent, which ultimately creates a healthier child.