In this context, "monopoly" could be a synonym for "centralised".
A centralised Internet, or rather a platform that has centralised all kind of services that everyone relies on, is bad on the long term. Regardless of the tracking and "Internet police", this isn't good.
I am not so concerned about ads (there are already some ways to reduce our footprint). Political usage of our data is far more dangerous. The majority of people feel like nothing bad can happen. But Google has already violated the web neutrality and this is a form of censorship.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.