I'm not sure if the amounts of contaminents are high enough to pose a threat with the CFL bulbs. The non-compact fluorescent bulbs are much bigger and have been around for decades and are still used for most commercial lighting. Nobody rasied a stink about those. It seems like they would have more toxins in them than a CFL. I know a lot of people who purposely shatter them while throwing them in dumpsters.
CFL's can actually lower the amount of mercury being released into the environmnet because it takes less coal at the plant to light them. Burning coal releases mercury.
Your right about LEDs though.