The Subjects of the most Christian King shall pay no other Duties or Imposts in the Ports, Havens, Roads, Countries, Islands, Cities, or Towns of the said united States or any of them, than the Natives thereof, or any Commercial Companies established by them or any of them, shall pay, but shall enjoy all other the Rights, Liberties, Priviledges, Immunities, and Exemptions in Trade, Navigation and Commerce in passing from one Part thereof to another, and in going to and from the same, from and to any Part of the World, which the said Natives, or Companies enjoy.
A tithe is a one-tenth part of something, spent as a contribution to a religious institution or compulsory tax to the government. Currently, tithes are often voluntary and paid in cheques, cash or even stocks. However in the past, tithes were needed and paid in kind, such as agricultural products. Several European countries perform a formal process related to the tax system providing some churches to impose tithes.
Democracy was created by humans to give us order and strict government. This text is saying there were other options before that. (I have taken a political science class) and an example of another option could be fulfilling Locke’s State Of Nature (where humans are just humans with no laws or boundaries). Democracy is not inevitable because there were other unexplored options before it.