actually, it has had a discernible impact: geographies that have allowed it have or will see increased economic activity: http://www.missourirecord.com/news/index.asp?article=10072

Repliers: don't bother citing the contradictory NOM study. If you believe anything they have to say, there is no room for conversation between us. The study hinges on an argument from Tony Perkins' Family Research Council, which is about as biased as any organization can be.