> provides some protection.

That's security, not privacy...

Although insecurity leads to less privacy as well.

Insecurity leads to loss of privacy, but security does not lead to privacy. Things can be secure and non-private by design.

Sometimes, but sometimes security measures lead to less privacy. Say, if executing local programs sends information to a remote server.

If that information can’t be used to identify anyone then it retains privacy while being secure. Being slow would still be an issue.

But you can't be 100% sure that the server where the information is sent is not putting in a database your IP, the app you run and whatever else. As a power user I would prefer a prompt before anything is sent.