So, basically, you're saying that Nix is insecure, because you need hash collision + signature forgery + malicious access to repos; whereas in a standard distro

So, basically, you're saying that Nix is insecure, because you need hash collision + signature forgery + malicious access to repos; whereas in a standard distro, you only need signature forgery + malicious access to repos? I really don't get your point.