You dont have to pay if you dont watch it. You can opt out perfectly easily. The arugment I hear is everyone else should stop watching it because of its lefty/righty/whatever politics. Not arsed, it delivers so much good content for more than half the price.
You have to pay for it to watch live or even record any channels. Even if you want to avoid the right wing upper class BBC channels and the hippos swimming in a circle which cost millions.