1- Who willfully chooses not to pay taxes? A couple of people do. I won't say most people would rather not pay taxes but, if they truly didn't want to, they'd do something about it and soon enough you'd have a law for not paying taxes making its way by the representative system. It certainly is a grey area, but I don't think it's a good example of what you're arguing because..
2- Taxes, in general, are a good system. Arguably the least worst. It's good enough that people will concede to it for lack of a better alternative to suggest. Then there's the specific implementation that can (and is) anywhere from OK to awful *. That's another story. No offense to he who is willing. A basic of jurisprudence.
Taxes aren't coercion. Not coercion at slavery's degree anyway..
3- You need taxes right now. With today's population. In today's real world of technology. It sucks, and it's certainly bondage, and it's arguably flat out coercive, but it's not slavery. You're free to dissent and get a grassroots movement to constructively and peacefully make a case against taxes. There would rightly be lots supporters and I'd be one of em more likely than not. But you need to have a feasible, reliable alternative. Or it's a non-starter.
Again, technological progress and thorough education are the best bets to change this state of bondage in labor that almost everyone is in. It's definitely (IMO) on mankind's very short list of priorities right now. I don't know about technological singularity, but there's apparently ample margin to increase technological progress. It must be harnessed.
4- Subconscious thing. If you admit it's reversible, it's certainly in subconscious' domain. Anyway, it's semantics. Why does it matter if only babies are effectively oblivious to it?
Suppressing our natural instincts is one of the necessities for civilization.
And one of the intermediate steps to this utopic (today at least) world you're arguing, is taxes.
Next point, no it's not fair. I was only arguing from a humanitarian standpoint. The exact compromise to make with internal, national interests, is a specific matter. Not just philosophical.
*
Tangential anecdote here.. It's not like I'm just arguing here either. I didn't like the socialistic way taxes and welfare and health care worked back in France. Why should I pay stuff using others' means? It was dishonest and hypocritical if I did it and then argued what I argued. So I didn't cash in social refunds, not even one. The craziest instance was when I had to go to the ER a couple of times, and get an operation. I had no coverage (always been in perfect health, rarely any colds or anything), but a relative went and did the paperwork..
After surgery was done. I only had to pay a couple hundred out of thousands (couple of nights care post op, the few ER visits, and operation).