It's easy to know why there are always complaints. Take this for example: Gay Marriage legalize, who will support? Those who sell wedding dress of course, because they want to sell their stuff. Prostitution legalization, who will support? Prostitutes themselves, because they need to do business. Who will go against? Those guys whose wife/girl that want to be prostitute of course. There are many more examples, but it will come down to one thing, people do things for their own benefits, and complaints are meant to benefits ourselves. We're all the same here. Peace