It's an overreaction. We clearly don't like that our use of employers computers is monitored. But it isn't reasonable to expect that we'd have so much privacy on those computers that our managers wouldn't be allowed to see how we're spending our time. Just because we don't like it, doesn't mean it's wrong.
Of course, we're all free to work for companies that promise not to perform this kind of monitoring.
Of course, we're all free to work for companies that promise not to perform this kind of monitoring.