DRI, BSD, and Linux

You are right. It's the hypocrite part of the BSD community... they hate GPL but love proprietary. BSD and GPL really define different open source development models. The BSD seems to push for sub-optimal open source version compared to proprietary forks(cf darwin/macos). I think that's what RMS saw a few decades ago and that's why he designed the GPL:to make the open source version THE optimal version of a software.
Nevertheless, some companies/people successfully work around the GPL protection against making sub-optimal open source version compared to proprietary forks:check out mysql/opensolaris/lzo... That RMS missed: how successful would be a license that's protecting code from its authors themselves?
Big buck company can easily buy all significant authors from Linux and make a optimal proprietary fork...