They're also extorting people and firms who do business with them. If you need things like, say, land use entitlements, building permits, tract maps etc., the word went out a while ago to contribute to the no on 90 efforts, or face the consequences.
I realized that after I posted. I found that the League of California Cities has their very own PAC where they can collect the extortion money.
http://www.citipac.org/
There is a great article on my bookmarks page about Red China documenting how much easier it is to start a business there than in the United States.