The "beauty" of open source? Leftists like Richard Stallman can rip your code and put you out of business?
For one, he can't. Stallman can't arbitrarily change the license on another's work.
For two, if you look at the actual report, it's about the trademark of the Firefox logo, and Mozilla's right to decide what gets distributed under that trademark. They can fork all they want according to the MPL (not GPL, but closer to Sun's CDDL that you've praised), but they won't get the advantage of the brand recognition of Firefox.
There quite a number of "consevatives" on this site who think that stealing software is OK.