People are not forced to buy it and they want it because google is pretty successful at delivering what people want.
Nobody doubts that Google got to where they are by offering an attractive service offer, cheaply and non-transparently priced in "privacy units". The issue is what Google do with their market power, and in particular how they use that to try and avoid competitors getting a foothold.
So this isn't about your choices today and whether the Google proposition is popular, it is about Google trying to make sure you don't have choices tomorrow. Is that lack of choice really what you want?