Also known as "Hobson's Choice": a free choice in which only one thing is offered.
https://en.wikipedia.org/wiki/Hobson%27s_choice
Naturally the vast majority will just click through and accept the defaults.
But what if a small number does not? Could Facebook see 6% or 4% or 2% attrition because of this?
2% attrition of 2.2 billion users is like the entire population of California and Oregon.
This many people leaving the network makes it a little less connected and a little less valuable for the 98% who remain.
That's a lot of people wandering about, discovering new alternatives to connect with their friends and family.
Facebook will be with us for a long time, but reducing their influence would be a big net positive.