Have you noticed that a lot of scientists ARE liberals? And that has resulted in a boatload of junk science?
Baloney. Activist liberals are activist liberals even if they happen to be scientists.
Yes. There are also a lot conservative scientists, and you'll find some of them on FR.
And that has resulted in a boatload of junk science?
Yes. But that's because scientists are people like everyone else, and are susceptible to the same biases. The difference is, in their line of work, they are trained to recognize them better than anyone else.