You're conflating what "Free Software" means and what Copyleft means. In any case, they both need protection from people like you who want to take it and benefit for free, without having to give anything back. Copyleft was designed specifically to prevent against people with your mindset. Permissively licensed software needs copyright to protect authorship rules, although the requirements are lessened.
I think the troubling mindset is that of who accuses strangers on the internet of misbehaving without knowing their opinions.
Software doesn't need any protection. People want protection.
> Software doesn't need any protection. People want protection.
Correct, people want protection for the hard labour they put into doing something good (writing software) for the world, and to not have it co-opted for individual profit over communal profit.