My brother(22m) keeps trying to get me to set him up with my(20f) friends. If I don’t he will himself

Let me start off with some context about my brother. He’s very charming, magnetic, and hilarious. He’s pretty good looking apparently(I genuinely don’t see it). He can pull girls, he just hasn’t had much of a chance since he ended his 3 year relationship OVER TEXT a few months ago(this relationship was very weird-she was Indian he’s white, they his the relationship from her parents so they barely hung out, he also lowkey almost cheated on her and let her best friend send his thirsty pics on snap. Disgusting). He ended his first relationship when he was 18 or 19 over FaceTime.
I would set my friends up if he were a good guy and it could last a long time or forever.
I think this story from 3 days ago tells u what u need to know about my brother. My parents and I are out of town, we have a petsitter taking care of the pets while my brother’s home because he has a full time internship. He was upset my parents didn’t trust him with the animals and got a petsitter. He wants to go to his friend’s cabin for the night after his internship ends, tells my mom we don’t need the petsitter for the next day because he’ll be home by 9am because he has work in the morning. He doesn’t come home the next day because his shift is picked up. He leaves our dog and 2 cats alone for over 24 hours until my parents and I get home from our trip with no food or water and no going outside to go to the bathroom and does not feel bad about it AT ALL because he wants to enjoy his summer, when he’s the one that told my mom we didn’t need a petsitter because he would do it. He is seriously unable to see that it was his responsibility and he genuinely did not feel bad for the pets at all, including my dog who couldn’t go potty for over a day.
This is just my brother, I would never expect anything else from him. He lacks empathy and the ability to see other people’s perspectives. He abused me pretty badly growing up. Yes he’s charming and girls like him, but he is not able to have a long term serious healthy relationship and is not someone I want my friends to date. Much less do I want to hear about anything romantic with my brother from my friends.
We are pretty close now, both busy with our own lives but go to the same college and see each other often and have lots of fun together and study together. He’s friends with my best friend(who has a bf) and I’m friends with his friends(I wouldn’t go for my brothers friends). I have made lots of new friends this summer that go to our school that he hasn’t met yet but he probably will eventually. Every single girl I meet or work with that is single he wants me to set him up with. Recently it’s been my 19(almost 20) yr old coworker and new 19 yr old mutual friend I barely know that has the same major as him that he’s begged me to set him up with. He’s obsessed with meeting someone new and dating.
I don’t know what to do or how to make him leave it alone. I have tried everything. Im scared he’s going to do it on his own or if im hanging with them and run into him or vice verse im scared they will get a crush and follow each other on insta and start talking. I can warn my friends and tell them everything I told u guys, but we’re young, dumb girls, they don’t have a ton of relationship experience, and they are open to boyfriends and I know would love his attention. I don’t know if my warnings would work.