It would be an inherent flaw in using money to hold people, though. Or course the accused is going to have to actually raise money if they don’t have it. And that will require other people to give them money. So even if you don’t allow someone else to pay bail, there’s no way that person couldn’t just give it to the accused to then pay the bail.
The whole idea of using money is the problem. For low amounts, they aren’t generally a flight risk and could just be released. For slightly higher risk, monitor them and take away documents that would allow them to travel. For any higher risk, just detain them.
Oh, and in case it isn’t clear, I didn’t stop replying to you because I agreed with you. You may choose to throw up your hands debating Christians, but I don’t, and have actually succeeded at times. It sucks that this wasn’t one of them, but I’ve converted people from pro-life to pro-choice by pointing out what the Bible actually says, so I think I know what I’m doing.