Perhaps you should consider that there is a reason for having 12 people on a jury, and why a single person can hang it. What seems to have appalled you, in practice, worked exactly like it should have. It takes a single person to keep things balanced.
It's also interesting, that knowing this, you advocate demanding a judge to determine your fate over that of a jury -- essentially, putting all your eggs one one, biased basket. And yes, we're all biased, like it or not. To not be biased would require a special mental handicap that I have yet to encounter.
I don't consider myself stupid by any means, and, like your mother, I too decided to serve on jury duty. I recommend it for everyone; it's completely different than portrayed on television. Sure, you're supposed to make decisions on the facts -- which is what you believe to be true, not evidence, which is something else. You're constrained by the laws, the wording, definitions, etc. Then the last thing the judge tells you is that what happens in that room is no one's business except yours, and that ultimately you're going to make decisions that you feel are truthful, and you can sleep with.
The judge who talked to our group discussed a priest with a drinking problem who had gotten off drunk driving convictions three times by various juries. Each time, the jury saw what a great man he was and gave him "one more chance." Eventually he wrapped his car around a tree and died, but the point the judge was making is that you're not necessarily doing someone a favor by letting them off. While he didn't kill anyone else, he could have.
I took something else away from it too: the jury has the ultimate control over deciding whether a crime was committed. It can be illegal for you to chew gum, but it'll take a full jury to be willing to convict you. For example, in Michigan, it's a felony to commit adultery (750.30). I suppose adultery is about as common here as anywhere else, but guess how many people are tried for it... Juries are the reason draconian laws aren't enforced.
If our fate lay solely with a judge, who is completely unbiased (if there were such a thing), and who held us accountable to the letter of the law in all cases, we'd be much worse off.