The main issue is like it ever was with the UNIX wars, now Linux wars.
Cloning UNIX was not enough, now each distribution wants to "improve" UNIX on its own way.
Cloning UNIX was not enough, now each distribution wants to "improve" UNIX on its own way.
As for UNIX, perhaps you're familiar with Plan 9? Some of the principal UNIX designers were unhappy with the result, so they went and worked on improving it. Nothing is good enough the first time around.