I think the cause and effect is a bit mixed up in your reasoning. What's actually happening is threefold: 1. People are starting to get fed up with tracking of

I think the cause and effect is a bit mixed up in your reasoning. What's actually happening is threefold: 1. People are starting to get fed up with tracking of all kinds (including third-party cookies). This is happening gradually, but is increasing. A consequence of this can also be seen from the legal side in the form of GDPR. 2. Google sees the tides on tracking are turning and tries to preempt by proposing a superficially less problematic alternative (FLoC) that will be least detrimental to their tracking business. 3. People dislike FLoC because it is not sufficiently lessened in this new normal and is therefore also unacceptable.