It blows my mind how many people have bought into Apple's position on this. No, Apple restricting your freedom does not afford you greater security. You, as an adult, can choose not to install shady software. If you're not confident in your ability to tell shady from legit, just stick to the App Store. Don't demand that Apple treat the rest of us like children just because that's how you would like to be treated.
But apparently you, as an adult, can't choose to not buy Apple if you don't like their policies? Strange.