Hazards of Oil Dispersants

Are the chemical dispersants that are supposed to be "solving" the oil spill in the gulf of Mexico really helping?
These oil dispersants that were supposed to help are highly toxic, more toxic than oil. Exxon would go public with the ingredients in the dispersants, causing toxicologists to try and find the ingredients themselves. The ingredients in the product are very harmful to marine and land animals. It can cause internal bleeding, cancer, skin ulcers, eye and mouth burns, and much more.
The dispersants can harm people as well. Just swimming in the water will make you sick.
The chemicals being poured into the gulf are making a more toxic environment than just the oil. The dispersants are petroleum based and have many, many more toxic chemicals. The oil and dispersants together are more toxic than either one alone. Are we really helping?
The government has been saying that our efforts are working, and that more than 50% of the oil is gone. But in fact, the oil has sunk below the surface. Not only is it not helping, but consider the long term effects on the animals.