5. Why must one opt out of the economic system? 6. Why must one stop working? 7. Why must one move away from their friends and family, to a foreign land? What if there is nowhere else with lower taxes?

I believe the the observation, about slave morality is being misunderstood.

But more importantly, the crux of my argument is this - if people are truly happy about the level of taxation, then why is it mandatory. For instance, you could have a minimal tax of 5% for core government functions and allow people to contribute any percentage they would above that to fund other various programs - you could even provide a guide. For current government functions to continue at their current level, the suggested donation for individuals at your income level is 55%.

If you don't accept that deal, then it doesn't seem that you are being honest with yourself that you have no problems with the level taxation.