While I agree with 2, I'm not convinced by 1--where can you get data that is unbiased without FORCING random sets of people to participate in a study in the way

While I agree with 2, I'm not convinced by 1--where can you get data that is unbiased without FORCING random sets of people to participate in a study in the way you want them to? Even FDA-mandated experiments are biased by the fact that it requires volunteers.