Now substitute 'gay marriage' with 'legalizing drugs'. See where your argument is going?
"He's wrong because he doesn't agree with me and took action to oppose it". If people never took action to push their beliefs then we'll still have slavery in USA.
We're a democratic society, and people are free to voice their opinion or donate to campaigns that support their beliefs as long as it is legal.
If I had the choice of herding the narcs or the anti-gay bigots onto a leaky barge and towing them out to sea, the narcs would go first. They are materially more dangerous, and the anti-gay bigots are far more likely to see the light.
Given the significantly enhanced incarceration rates of african americans for drug use, even though their actual drug use is not significantly greater than white americans, I've often thought that Drug Laws have precisely been about a coded way of continuing to oppress minorities, without having to be obvious about it.
I was impressed when Rand Paul came out and made it known that he believes this to be true: http://www.usatoday.com/story/opinion/2013/06/24/rand-paul-m...
Banning drugs has historically been, at times.
Interestingly, as FiveThirtyEight showed at the time, he waited until there was more than 50% support among Democratic voters before finally coming out in support of it this most recent time. (That tipping point happened a couple of months before he announced the "evolution" of his believes.)