Just to be clear, that is a terrible argument. "Where are the victims?" could have been said at the beginning of almost any good scam. Bernie Madoff didn't have any victims in the early 2000s but some people knew his numbers seemed too good to be true and were highly suspicious. We all know that by 2008 he would go down as running the largest Ponzi scheme in American history.

Just because something doesn't have immediate victims does not mean it will not have them in the future.