why is it ok for a group of people calling themselves the government to force everyone to buy their services?
if enough armed people refused to pay and told the government to go fuck itself there is nothing they could do.
Maybe it is because they know and they see where the taxes they pay go. It is usually used for the improvement of the community that's why many people agrees on paying it. You should only go against it if greed is taking over your country wherein poloticians are stealing all the taxes you've paid for personal use.