Your understanding of what as OS is outstanding. The OS is very usuable. There are just not many applications for it at the moment. A browser is not part of a Operating System.
I do not even use AROS, but your realling getting on my nerves, and I would imagine also the nerves of people who have worked long and hard to get AROS where it is.
How about you write your own mulit-platform OS from scratch.
I would expect you have trouble writing your own name wihtout help.