As far as the pros/cons, you *might* be right in comparing to vaccines. However, I think that we can limit any number of activities to make our lives safer. The problem is that I would rather live in a free society than a safe society. There is a balance of course. We have law enforcement. We have laws such as “do not murder”. The criminals should really respect that law, but they do not.

And finally, the reason that we have a right to guns is not because of the 2nd Ammendment. The 2nd Ammendment exists, because as the framers saw it, the people have a right to guns – to use them as a tool for good, not evil. Similarly, we don’t have a right to free speech because the Bill of Rights grants it. The Bill of Rights exists to confirm our already innate rights as mankind.