Earlier quoted context omitted.
Look up the definition of a "monopoly." Google is giant, sure, but it's not the only search provider, or email provider, or anything else that it does (aside from some random niche things.) And everyone has perfect freedom to switch from Google to another provider of these services, which isn't true for ISPs if only one company has fiber going to your house.
But you can always use DSP, cable, satellite, or even tether off a wireless if you don't like your home ISP. Just like you can use alternative search engines and services (even FOSS self-hosted ones) if you don't like Google.
You can, if you're willing to accept a second-rate experience. But avoiding that is the whole point of net neutrality enforcement.
ADSL is fundamentally unable to compete with DOCSIS or fiber; phone lines simply do not have sufficient bandwidth except over impractically short distances. Satellite can never offer acceptable latency. Cellular radio solutions exist on a spectrum where at one end they have broad coverage but horrible latency and throughput, and at the other end they can outperform DSL but only by deploying a dense enough wired backhaul network that you aren't saving much money over building out a pure wired network.
If you want 50+ MBps with low latency, there are only three viable technologies: DOCSIS over coax, short-range xDSL, or fiber. Only one of those three is currently widely deployed in the US. The latter two are available only where it is most convenient and profitable for ISPs to deploy.