Not wanting to take a man's last name again

My boyfriend is upset with me because I said if we get married I'm not taking his last name. I have always said I will never take a man's last name again. This isn't news to him. I have 2 boys and we all share a last name. We have my last name. Before when I was married to my ex I took his last name and the boys had his last name. I had walked in on my ex husband (Trigger warning ⚠️⚠️⚠️⚠️⚠️⚠️) raping my 13 almost 14 year old when he was 7 and that had been going on for 2 years. I called the police. Divorced him and not only changed my last name but my boys last name. Which was a BITCH! It's a pain in the ass to change your last name and get your kids last name changed. I don't want to take a man's last name again and I also want to have the same last name as my kids. Changing my last name to his would mean me and my boys have different last names which I don't want. I did offer a solution and agree to hyphen but my boyfriend said his parents said a woman taking your last name her creating a family with you. A name has nothing to do with anything. We would all be a family regardless and he knew I felt this way our entire relationship and we've been together 2 years. He's treating me like I'm in the wrong when he knows my stand on this

@Realist he doesn't want to. He said "You would be joining my family. Not the other around."