Bullshit. A libertarian is a supporter of the Non-Aggression Principle. One that supports taxation cannot be a libertarian.
You can have a small government that protects individual rights, and provides an efficient national defense (air and sea attacks), without taxation. Many people will voluntarily support a legitimate government, and this type of government is the only legitimate government. Their are some fire departments that don't require a monthly fee, and they don't get government money, yet they are extremely reliabe at putting out fires. No one is forced to pay, they get the money through pledge drives, and it is all done with volunteers. Taxation is primitive and barbaric, yet efficient form of slavery. The "duty" of paying taxes, as it is some sort of debt, is so ingrained in our culture. Learn how to fix the "slave mentality" and you will learn the key to ending the era where a few rule the many. Instead we will have the few who serve the many.