Hi Rick,
It doesn't surprise me that letter did not receive the courtesy of a reply.
The best way to alienate people is to threaten and antagonise them.
It's such a shame you didn't ask for opinions here before sending and collectively we could have made it more relevant and composed it in such a way that someone might have felt the need to respond.
The finance industry is just that, an industry, and so the regulators seem very reluctant to act becuase any unpleasantness reflects badly on the market they are employed by or to police. This is very true in London where a lot is covered up. A $250 million fraud was never covered by any UK newspaper, being one example!