Copyleft is those user-protecting restrictions. I'll refrain from repeating myself.

By your "fewer restrictions" logic, permissive licenses would be the ones most copyleft. Again, the purpose of copyleft is proliferating "freedom-respecting" software, not amassing - open source. Code that is open, but you can't utilize freely because of a locked-down device or a patent - "misses the point". Preceding references emerged organically and... whoa.

Most GPLv2 bias which isn't caused by Linux' licensing is due to the kind of FUD you've perpetuated in this thread, not any actual issue with GPLv3.