The problem is that a lot of people were actively choosing not to use G+, but is now being forced to abandon other services, or face having separate identities merged. So for lot of people it is not as simple as "simply not using it" - if you had invested lots of time on YouTube for example.
and to those moaning about it, feel free to moan about others moaning. we can all have a big circle moan.
Google seem insistent on damaging their own brand with this behaviour. It's up to them, but if they do continue down this route, expect more satire to ooze up through the intertubes.
I never seize to be amazed at how much energy people put into hating things when they could just simply not use it and then continue with their day.