Political intervention is what started Google, so I don't see the problem.

How about taking responsibility and just not using services that require it.

Google has shaped the web into what it is over decades so that they could maintain their position of power. This is the very essence and purpose of a monopoly. Yet here you are trying to blame anything but the monopoly for the monopoly's existence.

Nothing like convincing hundreds of millions of people to abandon a company rather than put any pressure on the small group of greedy people who own it.

The two approaches you mention need not be mutually exclusive. I ditched google services more than 10 years ago, while loving somewhere they did some truly despicable antidemocratic things. but so what? They're a corporation. There are political lobby groups, privacy foundations and advocacy groups you can contribute to. Despite being respectfully evangelical with those around me, most other than a fringe really don't care enough about this. Doesn't mean I’ll stop. I will still suggest alternatives. They're my principles. you're working in their interest if you tell your allies to give up. I understand and share the cynicism around political process especially in democratic nations with disappointing levels of corporate influence over legislation, we can only engage in it best we can, as well as exerting our rights as consumers. The critical mass required may seem insurmountable but negativity toward those effectively on your side is not going to help either.