I'm all for free software, but this reasoning sounds insane. When people buy a PC, it says "comes with windows", you know what you're getting, and to require manufacturers to return half of it seems nuts. It's like ordering a cheeseburger, and then demanding a refund for the cheese. Why didn't you just order a hamburger?
Walk into a store and buy a fully assembled name brand (Dell, HP, etc) PC, complete with warranty and guarantees, without ANY software preinstalled. You can't. Your analogy fails.