Earlier quoted context omitted.
Google+ only had that many users because many other Google properties (YouTube being the biggest) were lumped in together. I bet the majority of Google+ "users" weren't even aware that the platform existed.
Yeah. If you had a google account was more or less impossible not to be on Google+. The thing is that engagement was pathetically low. We used to joke that the best password manager would be to post all your secrets in a google+ posting, because nobody would ever see your post.
If Google+ failed with google immediately signing anyone with a gmail account up for it and pushing it fairly hard with all their channels - how extremely unlikely is it for someone to organically take Facebook’s market share away?
Oh no problem, you’ll only need someone with more resources than Google!