What the Army allows is not thereby "legalized" - and as a free society America has never imposed on itself the standards of its military.
to legalize drugs that will cause more addiction and more crime
No reason to expect more addiction - and every reason (lower prices) to expect less crime.
Studies show one in six people who use pot become addicted. You have to assume no additional people will use pot if it's legal. It's incredibly naïve to believe that.
Legalizing pot will not end illegal pot either. The illegal market is alive and well in Colorado. That's clear already. What many pot heads will want next is free pot, not legal.
And you're ignoring the fact that many terrible consequences are manifesting themselves in Colorado from homeless pot head freeloaders showing up there to concerns about the new use by children.
http://www.9news.com/story/news/local/2014/10/10/should-colorado-repeal-legal-marijuana/17037649/
50 percent of voters responded that they did not agree with the decision to legalize recreational marijuana, while 46 percent said they still did agree.
49 percent said they disapproved of the way the state is managing the drug, while 42 percent gave the state's regulations positive marks.
For detailed crosstabs of the USA Today/Suffolk poll, visit http://bit.ly/1BMP5vp"