Sounds like a very rough day. I can commiserate with you about bad meetups. I tried to start one up for local devs who wanted to do some pair programming, but they weren't really interested in working. They just wanted to talk about what a bad language JavaScript is. I started the group but it was taken over very quickly by someone more experienced, and I felt like I was organizing meetings just so he could broadcast from his soapbox. I ended up shutting the whole thing down after a few weeks, and you know what? It felt amazing. I've had better luck building my network one person at a time. Hope your day today is better and that you will have some luck finding your tribe.
That sounds horrible! The worst part is I find a lot of the same people go between all the different meet-ups.
One girl started talking to me and was assuming I know all these people who are popular among their meet-up clique. Before she even started talking to me I heard one guy give her my bio and background. It was like he was sending her after me to recruit me.