Thank you for offering debate.

I'd like to present a little evidence, in the form of definitions, as to the fact that taxes are indeed a form of extortion.

First: Tax
Now, Extort
Now, note: the word used in the "tax" definition is not "requested," not "desired," but "demanded." That reveals an interesting fact: Taxes are not voluntary.

Well, what happens when you say "no" to the tax man?

According to Wikipedia:
"Tax evasion is a crime in almost all developed countries and subjects the guilty party to fines and/or imprisonment. "

Key words there: fines, and imprisonment.

A fine is:
And of course imprisonment is:
So, if decide not to pay taxes, they will take more money, or throw you in a cage. But what if you say no to that?

Well, then they will make you. They will use force to make you comply. Hmm... where did I see that, before? Oh yes:

I think all government functions could be distributed to a local level and there is no need for a bloated central government.

Especially these days where we have the internet to communicate instantly and tools to allow collaboration of people.

I'll bite.
Sure, the government does provide some services which are useful; I might even go so far as to say that a subset of those are "necessary."

Aha!
https://bt.irlbtc.com/view/98916.0#new

If forcibly taxing a few rich people to make many poor people happy works, and it results in more total happiness than a charity would, then that taxation should be done. That's a big if-and, but I stand by the if-and-then. (Logically, taking the ((a AND b) --> c) as a whole, the whole is only false if (a is true, and b is true, and c is false)).

What if we silently stole all of Bill Gates' money and used it for welfare? Would that make many people happy?

You're a tenant within the nation you live in. You are granted rights to "own" property, which does not have the same meaning as the way the nation owns property. You are free to agree to these terms, or leave.

Now, take the HOA as an example. You're free to stay, pay dues, be regulated, or leave, but you'll ultimately have to square up with the HOA. If you stay, but don't pay dues and refuse to be regulated while in the HOA, legal issues will befall you.

What happens when the tax is global and collected by the UN?

You cant leave and go somewhere else without permission - passports etc

There really isnt anywhere to escape too from government on earth.

Where's the rental agreement? And if I don't own land, why am I being taxed for other things? And more importantly, why do they call it ownership, if it's really not?