In many european countries there's laws against bundling two unrelated things together.
I think that statement is false. Without an OS, you can't even turn on your PC properly... The BIOS will error out saying "OS not found, press F1" or something like that, and that's broken from a consumer point of view. So an OS is not an unrelated part to the hardware, instead it's highly related and essential.
Let's rewrite your reply slightly...
It's the same for a CD player. Without a CD, I can't even turn it on properly. It says "disc not found, please insert disc" or something like that, and that's broken from a consumer point of view. So a CD is not an unrelated part to the hardware, instead it's highly related and essential.
Shall we be forced to receive CD collections with CD players, too? And DVD collections with DVD players? E-books with E-book readers? Dirty clothes with washing machines? Old bread with toasters?