As Maudcat said, ultimatums don't work unless you are very serious about following through.
I understand you have no family members to help you with a move. I hope you know that there are other options. Your husband rages at you - it doesn't matter that it's not physical...yet. Abuse is abuse. Please check out the information below. There are resources that can help you and your child should you decide to leave:
National Domestic Abuse Hotline (US)
Abuse Defined The National Domestic Violence Hotline The National Domestic Violence Hotline (US)
International Directory of Domestic Violence Agencies
Canada:
Home « HotPeachPages International Canada: domestic violence information « HotPeachPages International
UK: call Women’s Aid at 0808 2000 247.
https://www.qld.gov.au/community/get...-getting-help/
call 1800RESPECT at 1800 737 732.
Worldwide: visit International Directory of Domestic Violence Agencies for a global list of helplines and crisis center