Need Advice!

Hi ladies! I’m at a crossroads and do not know what to do with my marriage. My husband and I have two boys. One is 3 and the other is 2. In August we will be married for 5 years. The thing is it has been 5 years of argument after argument. He puts me down non stop. He says I’m lazy, fat, and worthless. Tells our boys to call mommy a lazy piece of s***. He wishes I would die already because I would be doing the world a favor. Always says I have a victim’s mentality. He says I could do so much with my life but at best am a D student. ( Mind you I have a great job and I’m a value stream leader at my company) He is going to go in the national guard and do boot camp again because he wants to get away from me. I’m a Christian and I don’t believe in divorce but I just don’t know how much I can take. We have nothing in common. He parents so differently than me. When he gets upset with the kids he charges at them picking them up by their shirt and pulls their pants down and to me spanks them hard. He got upset with our 2 year old the other day because he pooped his pants. He said he knows he is supposed to go on the potty. I believe he is just learning!!! He also has a pornography addiction. Any advice?? Thank you all in advance!