Not a terribly unreasonable list, but let's discuss 1 and 2.
1. Making gun manufacturers liable. In another post, you pointed out, quite correctly, that the purpose of a gun is to kill, or to wound seriously enough as to incapacitate. So what "defect" per se could manufacturers be sued for? Could Smith and Wesson be sued every time 8ne of their guns is used in a murder? This is simply a veiled way to sue gun manufacturers of existence.
2. Biometrics. No, no, a million times no. Look...as a design engineer who has spent his life bringing together mechanical, electronic, and software pieces to make things work...no thank you. I do not want a red "fingerprint not recognized" light when my life depends on it. Also, at the end of the day, a gun is a simple mechanical device, any biometric safeties put in place will have videos on the internet on how to defeat them within days. I once talked to an engineer from one of the major outboard manufacturers about theft prevention using biometric or electronic means. He said "good luck with that. We've tried some things but they're all very expensive and easily defeated."
So biometrics is just another way to put gun manufacturers out of business by creating a requirement they can't meet.