> why is it ok for a group of people calling themselves the government to force everyone to buy their services?
If you are in a country that allows you to vote, then you are the government. In most countries, you are free to leave. You can go to a country that doesn't collect taxes. Somalia, for example.
You can vote but if you only have the choice between candidates of the system that lie to be elected and say they are different, it is hard to change the way things are.
It is hard, but the advantage you have is that it's possible. All you need to do is rally people around one cause and make it happen.
If a million people, actually 1,000,000+ people, went to the capital building in DC demanding change...and DIDN'T leave with without change. Peaceful protest by EVERYONE, change would happen.
But most people don't understand that the root cause of all evil, waste and tyranny is Big Government, they see the government is helping the most powerful but fail to stop thinking that they need it to be protected against the powerful.