Until then you're a freeloader complaining about exactly the system that delivers your high standard of living.
I always get a kick out of it when people who fight to maintain a system that forcibly takes from others to benefit themselves call me the freeloader.
I give you credit, you didn't scream Somalia.
The places you named are not libertarian minded places, one in particular has strongly enforced sharia law which most certainly is not libertarian. The other is not libertarian either, it's waring military states funded and propped up by other states that fund them for their own gain. Your examples suck.
Sadly the best example of a libertarian economy is in Estonia, a country that is far from libertarianism otherwise.
The fact is no place currently exist that us libertarians dream of. Precisely for the freeloader reason you mentioned, any time someone has something someone else wants there will be people who band together to take it by force, either in the Sudan method you mentioned, or more peacefully they'll form a government and claim imminent domain or taxes. There are just so many people who need the warm embrace of compulsory safety nets provided by others. People like you want big government because they are cowards. People like me are happy with city-states, think Indian tribe, Scottish Clan, Viking Village etc... There's no reason why someone in Montana should have to finance the seawall in Galveston that helps to protect my butt, nor should I have to help pay to fix the Golden Gate Bridge no matter how significant of a structure it is.
People try to convince me on a regular basis we need federal funding to do things.
I live in Texas - we give more money to the feds than we get back. Of the money we get back how much was siphoned off on the way? Say the feds pay to fix a water main in my town. I sent $100 to the feds in income tax, the IRS takes $5 for the privilege of having taken my money, who then gives the $95 to the department of the interior that takes out their operating cost of $10. The department of the interior then gives the $85 to some large interior contractor, I'm going to make up a name to keep from singling out the obvious transgressors - Pipeanon. Pipeanon of course is required by federal regulations to have sub-contractors from a "disadvantaged" business do the actual work. Pipeanon calls up Hector & Son's Pipe Layers and sends them $35 of my dollars to fix the water main. Hector & Son's Pipe Layers then hires Juan for $12 to go dig a hole and patch the pipe.
I would have rather given my city $50 so they could pay Hector & Son's Pipe Layers $45 so they could pay Juan $20. Juan is a good guy, my kid and his go to school together and I usually sit next to him at our kid's soccer games and his boss Hector always brings a BBQ grill and makes burgers and hotdogs for everyone now that his business is making more, not to mention now that our money is being used more efficiently we have more bike lanes in town for our kids to safely ride their bikes to the park with and I have a better car since my money goes further locally and I have to pay less in taxes.
Feel the power of the big government, let it flow through you, swear off freedom and personal responsibility, only then can you fully embrace the power of the dark side.