It's a yearly subscription for living and enjoying all the social security, stability and other services on a piece of land controlled by a group of people with large weapons who usually abide by rules written down in a book. If someone doesn't obey the rules, there's high chance they might have to pay the consequence either by capital or life. The subscription fees, as it turns out, is being used by some top elites to sustain their own highly luxurious lavish lifestyles, instead of being used to improve the social security, stability and other services for the people on the land they live on.

Yes, so it is a theft currently - mostly; but it doesn't have to be.