Dude, you're insane. 
Bitcoin is easily tracked by everyone, seeing as it' s a public coin. 

Nothing is "easily taxed".  Paper notes are currently what most people mean by paying "under the table", so if avoiding certain taxes is your concern - try those.  They are much more anonymous.  Of course, paper notes are all counterfeit and are constantly being printed out by various people (all in private; you will never know how much or when), and so-called bank accounts are all private as well and constantly being added to from nothing by various people, but I don't think you were referring to that kind of indirect tax.