Tricky:
You are missing the point. If you have to complain about margins, then you should not be trading at all. Margins are good enough....margins are only increased, because people call and complain because they can't manage their looses. Also the point is the regulatory agencies want to look like they doing their jobs. Raising margins is easy...enforcing customer fund security is hard. Is raising margins really protectionism...I think not.
L