A more authortarian gov as a solution to non-optional 'services'?

No, I was suggesting that if you don;t like the country you're in right now you can choose another.

The IRS, or their equivalent, are the price of entry into whatever society you wish to be part of (or whichever will take you.

It's like a social club, if you don't want to pay your dues you don't get to use the facilities.

It's a standard cop-out. "'Merica; leave if you don't like it". Imagine if activists in the 60's had taken that advice.

You realize the IRS != US? We got along financially just fine (some would say better) before it.

I guess I'm trying to make a broader point than the IRS here - argue against the IRS and whatever other parts of government you like on a pragmatic basis, that's great.

I just get riled up by the "It's wrong! They have no right to tax me! I have property rights!" stance, because it's inconsistent.

Is it possible for a people to decide to make taxation voluntary? If for example country Q's owners (it's people) voted to not enforce taxation with force of any kind?

I don't see why that should be impossible. I have a funny feeling it wouldn't be very practical though!

I'm not American, thanks, so no its not a standard opt-out.

You have a choice of many countries in the world, with all sorts of different rules decided on by the people there.