> There are also probably too many people using the web to build applications that should be native.

I hear this a lot, but I'm personally glad I don't need to download an app to my phone/computer to order pizza or find directions.

Obviously this is a balance, but of the two extremes that could exist, having too many web-apps seems to be better than having too few. The quickest, simplest step you can take ATM to improve your device security is to install fewer apps -- particularly if you use an OS like Android.

It's not clear to me that situation would get any better if half of the web disappeared.