Have you EVER tried compiling some Linux distros?
All the time - I use Gentoo which in itself if probably one of the most unfriendly Linux distros available. I've custom built Linux
distributions for various people.
For a newb to try and compile a distro though. Wow, thats pretty impressive.
I have tried dozens on all sorts of hardware, only to have them crash or no compile properly (ever tried "tiny linux" on a P1 200 processor with 64 megs of ram - good luck.) Hours spent waisted on crappy distros that crash on re-boot
If you don't know what you're doing then you're going to have problems - the same applies to Mac, Windows, Amiga, ...
Your problems clearly highlight that a) people want to use Linux, b) some people have problems c) there is an opportunity for a company to make Linux easy.
Now think of it this way - AmigaOS is easy to use. Its fast. It does what you generally expect. Sure, there might be some pain learning how AmigaOS works coming from a Windows-only user but it is fairly intuitive. Now imagine that interface running on stable, fast, MODERN hardware.
Forget that its running on Linux, or BSD, or ... on PowerPC or Intel x86, or x64, or SPARC or ...
Apple did it and they've done it well. Amiga in the last few years seems to have copied everything else Apple has done, so why stop now?
It seems like EVERY time we talk about ANY OS, the Linux boys want to CRAM it on us (just look through any thread on this very board for the last 10 years). Every year I try at least a dozen times to use linux and the only ones that I can even get to work are Abuntu and I do try to use Amigaforever, but I give up on it in a few hours.
After a few hours. /shakeshead.
Either way, a UNIX core could be seen as a stop-gap. To get interest back to the platform. There is nothing stopping the Amiga company from developing a UNIX/Amiga hybrid, get some developers then move to a

/Amiga. But at the moment we're getting NOTHING. Well, thats not true - we're getting more outdated hardware, costing a hell of a lot of money and an OS that is looking prettier - with pretty only minor functional changes.