Should i call off my wedding?

Hi All. I’m hoping for some advice on how to navigate this painful experience. My fiancé and I have been together for three years. He’s 39, I’m 35. On in our relationship, he confessed to me that he had an opiate addiction in his 20s while struggling with the death of his father. He has been sober for over 10 years now and is active in his sobriety. It took me a while to be comfortable with this because I never dated somebody with the history of any substance abuse, but I appreciated him being so honest about it with me. He has never given me any concern that he would use again. He has a great family and group of friends, and in my opinion we all have a past. What mattered to me is that he’s turning his life around.
Because they’re nosey, my parents decided to run a background check on him before they even met him and saw he was arrested for purchasing opiates. No matter what he’s done or effort he’s made in getting to know them, my parents never gave him a chance. It’s a shame because he’s a sweetheart and so good to me. Family is very important to him and not being able to have a relationship with mine is breaking us.
My parents have informed my the entire family that I’m so desperate I’m marrying a drug addict who’s going to ruin my life so they shouldn’t attend my wedding. They cancelled my bridal shower and have now gone no contact with me. I’m beyond humiliated, hurt. People think I’m desperate and marrying a loser when they don’t know his story. He’s the love of my life and I’m heartbroken he’s experiencing this much hate from my family. His past is nobody’s business but I can’t stand the rumors my parents are causing. Should I just give up and cancel our wedding?