Is this a dangerous trend for the NBA?

Players leaving the NBA for European clubs. I'm sure you've heard how weak the dollar is and also how European clubs are able to offer more lucrative contracts. Here's a list: Bostian Nachbar, Carlos Delfino, Jorge Garbajosa, Juan Carlos Navarro. While these are international players Josh Childress American born is considering leaving the NBA for a European club. Brandan Jennings has (I think ) signed a multi year deal. Is the one and done rule and rookie contracts going to backfire on the NBA.