These are lovely sentiments.
But the reality is that the mother may not want “treatment” . And even if she does, it may take years to get it and years to fix things. The child doesn’t have years.
It’s also possible or even probable that she will meet another man and have another baby with him, which make it even more unlikely that she will want this child back.
The father is showing no signs of trying to get his shit together. And the longer his child is cared for by someone else , the less often he sees him and the longer he lives as a carefree single man, the less likely he is to ever want his child back.
Remember that 50%’ of fathers stop contact with their children within 2 years of divorce / separation. And that’s mostly men who are functional, who hold down jobs and have their own homes, so doing a lot better than the Ops BIL.
Sadly is no chance at all that the Op will be able to get the child therapy, unless she has the money to pay for it privately. She is also very unlikely to get any help from SS, as PP who have done it have pointed out.
As long as the child is being adequately cared for by a family member, SS will do absolutely nothing to help.
We would all like to hope that things will work out Ok, that the parents of this child will ask for help, get it and make good decision for their child. But the best predictor of the future is the past.
It’s not fair to this child to gamble with his future, in the hope that a miracle will happen and parents who have been inadequate for two years will suddenly change now. Or in the next 8 months before the Op goes back to work FT.
If neither of his parents can care for him, would be better for the child to go to foster care now with a view to finding an adoptive placement for him. That’s a lot more likely at 2 than it will be in a few years time.