Not that black and white and you know it. These services are obiqutous. It's sometimes impossible to ignore them and they do in fact provide a great experience (the best really) in many ways. That doesn't mean they don't have faults and it doesn't mean people who use these services should simply ignore said faults or move away from them completely.

"You are not forced into anything"

Pretty sure that's incorrect. If I want to rate an app I purchased on Google Play with my Google account, with my Google smartphone, I need to post that review to Google+ even if I don't use or have a Google+ profile. That is lame, because I am forced to create a profile and use Google+ (in addition to having a basic Google account where my credit card and email are) just to submit a feedback score to the developer of the app.

Google forces its way between the task I'm undertaking - leaving a rating, and their Buzz 2.0 product which has nothing to do with me leaving a rating on an app I have paid money for.

Google can force whatever it likes on users as defaults, and I won't care one bit if they just allow options for users to change those default settings. Eg "don't use Google+", "don't hide editable subject field in the compose new message gmail window".

Well, then you're put in the bubble of people who don't use the offending service.

And ... this may be news to you, but every once in a while a large bubbling company may actually buy some upstart service where their own attempts at NIH entry into a niche fail.

You know, like Google buying YouTube in the first place.