Child Support -- Is this fair?

I completely understand being upset about your husband not being able to see his son even after paying what he’s supposed to but regardless that IS his son it’s not taking much away from YOUR son because at least your son has a father in the long run your husband knows he’s doing the right thing and its not his fault that he wasn’t in the other boys life but the boys mother just be happy he’s not a dead beat and a good man & father