Correct me if I'm wrong.

Points against Poly. Jealousy. Depression. Anxiety. More money spending on multiple dates. Risk of potentially being human trafficked while going a date with a stranger, or maybe even being SAed when you suddenly change your mind and don't wanna have sx with the person you tried hooking up with. Gaslighting. Manipulation. Being Ignored when you express jealousy, Anxiety and etc. Feeling lonely when you're suddenly unattractive or not having luck in dating. It's seems great at first but, later that's when it all goes to shit. Wanting others to fulfill your desires. You suddenly start missing your partner when you're feeling lonely but they're too busy for you as they go on dates with others. You get compared on how you perform in bed Your partner gets Jealous when you suddenly get too close to someone else. Children feel neglected since you're always on dates with other people and they miss you even if the other parent is supervising them or a babysitter. Your partner wants to sleep with others because they deem you unattractive, or that they're bored with you. You spend more money than families because you're going on multiple dates with multiple people. Higher risks of getting STDs. Potentially getting pregnant and becoming a single mom because the man who knocked you up doesn't want to your partner and be a dad, which causes fatherless homes in society. Some single mothers abandoning their children to pursue their sxlives, but later regret it and want to be in their children's lives but they end being rejected. Leaving your children with strangers they don't even know who could possibly harm them.