((((((((Dee))))))))
you have my sympathy and understanding on this one, both my husbands were the same...and unfortunately boys seem to learn from their fathers as opposed to their mothers.
i'm sorry if the only advice i'm about to give is no good but it's all i have besides love and support...
i don't know your personal circumstances which is why i don't know if this idea is practical but...is there a grandfather or favorite uncle that could talk to your son about his behaviour?...and forgive me if you think this next suggestion out of line, it's out of concern for you...maybe they could have a word in your husbands ear too, explain to him how his attitudes transfer to his son?
sincerest apologies if you feel this post disrespectful in any way...
and good luck sorting it all out.