Earlier quoted context omitted.
We always give up freedom in the name of security so so easily. Why is that? Why does fear always win? Your argument is based on fear. Why do we favor fear over rationality? You would choose a dictatorship over a democracy if it meant that you felt safe. This where that line of thinking leads. You'd rather be safe than free.
It isn't about fear. The internet is a space we share. Do you look at drunk driving laws as an irrational concession to fear? The slope isn't nearly as slippery as you seem to think it is.
We got by just fine in the 80s and 90s without App stores. So much innovation came out of that world which established the dominant players who are in control now.
And you don't even get security with App stores. As we already know with all the malware found in Google Play apps.
App stores are simply keeping the big guys big and small guys small with few exceptions here and there.
It's just another walled garden that keeps the little guy out and keeps players like Google and Apple entrenched.