>Yes, that starts with "leaving it"

You're right, but the percentage of Google users aware of how evil they are is probably less than 0.5%.

An overwhelmingly large percentage of users won't care about what could happen as long as nothing happens directly affecting them. Mass surveillance companies like Google, Facebook know this and take advantage of it.

Technology activists aren't strong enough to start a wave that would lead to people abandoning these evil corps..

Also, as others mentioned, they eat up all competition.. so there aren't really any good options left apart from Google products in areas they compete.