Would you end your marriage over your husband putting your child in danger?

I think I am at my breaking point with our marriage. We have been together for almost 20 years. We married young and now I'm honestly done. I've dealt with him not being able to keep a job, infidelity, him being emotionally unavailable but this I think is the straw that broke the camels back. We have 4 kids together. 3 girls and 1 boy and my husband is harder on our son. Not in an abusive way but I don't think he's ever been affectionate towards him. He's wants him to be manly to stand his ground. Protect his sisters. He's made him go fight someone he didn't wanna fight. This was the most negligent thing he's done. Our son is 14. He was at a Casey's which is a convenience store at night after robotics. Outside the Casey's some people who we found out were also teens robbed him by threatening him for his money. All my son had was 5 dollars so that's what he gave them and they left. He came home while I was with my mom and the hospital and told my husband and instead of my husband calling the police he told him to go find the guys guys to get stupid 5 dollars back and made him go and try to find them saying he needs to stand his ground. Forced him to go do that and do it alone and when he eventually found them close by that Casey's he asked for it back and they told him to come to their car. Pulled a gun on him. And made him do things he didn't wanna do and left him there and drove off. He called me next instead and I left the hospital to get him and make a police report and we had to go to the hospital to swab him for their DNA. They have finally been caught and are facing multiple charges and I about killed my husband. Especially with how he acted. He was saying "At the end of the day you stood your ground and should be proud of yourself. This is what I raised you for." No. At the end of the day he got traumatized for 5 dollars. I told my husband how negligent that was and how could he send him back there and now look what happened and my husband for real said "Well it's going to make him stronger." He stands by his decision and said he would do it all over again and what happened has made him a real man who stands his ground. For 5 DOLLARS!!! My husband refused to see how he's wrong and how he got more traumatized than he needed and I just went and threw all his shit out the window and told him to get out. He thought I was being crazy but I told him he's a terrible husband, a terrible father and I'm done. I told him today I think I want a divorce. He's begging me not to go but this marriage has brought me nothing but stress, unhappiness and now trauma to me kids. There is nothing good in our marriage and if he genuinely can't see how wrong he is and partly responsible for the therapy that is gonna cost us way more than 5 dollars then I can't even trust him to be a safe parent. He's useless as a husband and a father and I feel done.