How do you feel about the idea that there are no facts in sociology?

I came across this statement in another question today: I took sociology for first year at college but dropped it because it was all based on theories and it drove me mad that there was no fact about how society works (and never will [be?]).

This is a fascinating statement, and it is one that I hear in other situations. I’m wondering if you agree that there are no facts about how society works, and if not, how can sociologists create facts and what do those facts mean?

Do you think this is an issue about statistics—a complaint about things only being expressed in terms of probabilities? Or is this more basic—as if somehow facts cannot exist when it comes to human behavior in societies?

If you believe that there are no facts, does this bother you? Why or why not? If there are facts, how can we know them?