I think the point is that if you can't install Linux running natively, you can't escape "undesirable behavior" by the Apple-supplied OS. For example, if you wan

I think the point is that if you can't install Linux running natively, you can't escape "undesirable behavior" by the Apple-supplied OS. For example, if you want to ensure your laptop isn't sending Apple information about what you're transmitting over the network, running a VM sandbox in OSX doesn't eliminate that possibility.