Why? Just a feeling? Like most things the truth probably lies somewhere in the "middle."
I didn't say we live in a land of pure unbiased science. However, you can be certain that those insisting that science is biased are basing their conclusions on vastly more biased sources of information than science itself. In one thread, we have a climate science denier who obviously gets moral and emotional comfort from a right-wing political point of view; in another, a creationist who gets moral and emotional comfort from Conservative Christianity. They don't seem to realize that to criticize science effectively, you can only approach from a position with less human bias than practiced science, not more.