You can't simply name Google a walled garden and expect the moniker to reflect reality. Android apps can be acquired anywhere, and most Google services allow you to export your data. Compare that to needing to jailbreak an iPhone to download an app Apple doesn't like, or the complete inability to get your data from facebook.

Google might not be FSF open, but it's far better than those it criticizes.

Like this, you mean? https://www.facebook.com/help/?page=116481065103985

It's certainly not a complete copy of everything referencing you in their database, and it only includes information you entered (not friends' details), but it does exist.

Doesn't FB keep shadow information as well? Information onpeople who,likely exists, but aren't on FB yet?

So how do those people get their info out?

FACT: Facebook allows you to get all your data. Google+ doesn't.

As at least two other comments have responded to you

https://www.google.com/takeout