It's not really fair to say that all taxes are coercion unless you are prepared to admit that all laws are also coercion. Not to mention the compulsory educational system. ;-) (and that it is coercion is clearly evident to most children)

Now what would happen if we had no such coercion whatsoever? No laws. No courts. No police. No schools. No libraries. No telecommunications systems. No roads. No utilities. No armed forces. No rules of conduct whatsoever....

I think that is what Shane dreams of, and Shane is an idiot. ;-)