The BSD and MIT licenses offer true freedom. The GPL offers restriction and the elimination of freedom.
this is a very subtle and dangerous perspective that has one extremely large software project which has ended up in complete chaos, causing headaches for many people, including misunderstandings and ignorance by vendors who assume that because the majority of the software is BSD/MIT, the linux kernel's GPL license is somehow magically transmuted to a BSD/MIT license as well.
that software is android.
the only reason why we have things like cyanogen, thank god, is because there is one last bastion of fundamental GPL code left in android devices: u-boot and the linux kernel. without that, the smartphone industry would be viewed with extreme hostility. it's *already* bad enough in cases where companies such as Mediatek blatantly and continuously violate the GPL.
look at what happened with Fairphone, for example. great product, yes? envisioned as being sustainable, yes? and after 2 years, what happened? well, there turned out to be some security vulnerabilities in the version of android that was supplied (by Mediatek). it was *critical* that the users upgrade. but, because Fairphone had naively bought a binary-only GPL-violating OS from a 3rd party OEM company that *DIDN'T EVEN HAVE THE SOURCE CODE*, there was no way to provide updates of *ANY KIND*. the buyers therefore had to abandon their products for security reasons. bear in mind that this is supposed to be eco-conscious *sustainable* hardware that's supposed to be re-usable. it was extremely embarrassing for Fairphone, and a very hard lesson for them.
so that's even when there's a GPL kernel. imagine what it would be like - imagine the situation if the linux kernel *wasn't* GPL? you would end up with the exact same situation as with apple. apple _used_ to release the kernel source code (based on FreeBSD) back to the community... they stopped recently. the end result: people no longer actually own their own hardware.
the GPL is, at its heart, a recognition that collaboration is better than competition and secrecy. the BSD and MIT licenses were developed when everybody released source code *anyway*. the licenses were therefore more about fighting the liability that is inherent in releasing code as "Public Domain". everyone *trusted* that the code modifications would be released.... and then suddenly they weren't [did you even *know* for example that Windows 95's TCP/IP stack is actually BSD-licensed?]
google's insistence on using BSD licenses - to the point of re-implementing entire GPL-based pre-existing libraries - has resulted in untold very subtle harm to end-users and to software freedom in general - harm that is very difficult to quantify and explain because it's long-term, and the consequences are ongoing.
the one thing that really really stinks about what google did with android is summed up in this simple question: they replicated dozens of critical low-level libraries and applications that had perfectly-functional GPL versions that were proven and had stable communities based around them (that could really have done with the financial support of google).... so why did they not replicate the Linux Kernel as a BSD-based project as well? that hypocrisy - that they did not also re-create the Linux Kernel as a BSD/MIT project - tells you everything that you need to know.