I agree this discussion has nothing to do with the post. That said, I believe that just because copyleft does not remove all possibilities of misuse of your code, I believe it prevents the vast majority of them. Like you said, this is a freedom vs security issue and the answer lies somewhere in the middle. Copyleft is that correct middle, in my opinion.

Its not theft, it’s because those companies will take your code, use it to make themselves more money, and then use that money to continue oppressing you, restricting your freedoms, and spreading anti-open source propaganda as usual. If the code was copyleft, then you wouldn’t have to worry about(or at least worry less about) such a thing happening. What I have described above is already something that has happened and continues to happen to non-copyleft open source code.