in this situation i would absolutely expect my husband to stand up for me.
absolutley.
as a grown up i would expect my husband to believe me with no doubts.
as a mother i would not want my children to be affected y this behaviour
as a wife i would be dissapointed in my husbands lack of support
as a person regardless of your relationship with me - if you phsically attack me or threaten me - i will call the police. this includes my own children.
this situation would be untenable and a conversation with all three would take place.
i would set out the rules - that this isn't for going over the past, this isnt a session for apportioning blame.
but there will be a meting once a week.
they each have one week to show you that you deserve respect.
draw up a list of chores for all the family - make it a rota so all kids get the shitty jobs at some point.
tell your husband that you are researching your options should you leave. - and do so. - look into benefitsm housing and start saving for your welfare, even start re-training to go into job market whilst you can.
this should be a week by week process. tell them that they are on notice.
do call the police if anyone ever attacks you.
do involve social services
do TELL your husband that you expect his head of household /masculine presence to back up your authority as household matriarch.
my son was around 15 when he gave me the most purid vitriolic abuse.
my husband ( his father) has him up a wall feet dangling with a " dont ever speak to your mother like that"
i am not advocating it. but i am saying that at a time when two lots of testosterone are fighting for dominance - sometimes you need to show them who does dominate.
also please dont be afraid of using money as a punishment.