Actually gun laws have become more relaxed over time. Gun laws on the books have been allowed to expire. In that same period the dollar has not evolved, money is still money, but guns have become faster and more powerful. And of course the views have changed, specifically from the NRA...in 1934 the president of the NRA stated:
I do not believe in general promiscuous toting of guns. I think it should be sharply restricted and only under license.
Facts are stubborn things; and whatever may be our wishes, our inclinations, or the dictates of our passions, they cannot alter the state of facts and evidence.