On the Seizing of Firearms by the Government

N.B: These are my PERSONAL opinions, which I value greatly and as of yet see little fault with. So if there is some better and holier way to do it, then please, by all means, tell me respectfully.

Opinion One: gun control is unnecessary. Criminals always have broken the law: mandating that all firearms (or even those of a certain type) be relinquished will not stop criminals from owning and operating them. They’re CRIMINALS, for goodness sakes. They BREAK THE LAW, IT’S NOT LIKE ONE LAW WILL STOP THEM. And plus, if more citizens are raised around and able to handle firearms, then they will most likely be more responsible with them. Suitably-armed citizens walking our streets, conducting everyday business, can respond to a violent situation much more quickly than the first responders, which can take tragically long amounts of time to reach the situation.

Is this not correct? Please, object my observations and assumptions rationally and logically.