Paying for goods doesn't change how it can be used, if that was the case then you couldn't take a gift from someone as you didn't pay for it, therefore hadn't contributed to licensing personally. You're logic is flawed.
Technically you are paying for a license, but most licenses are a once only thing, or renewable over a few years. It's effectively a permit. A license for fishing is a collateral amount of money to suggest you aren't just some vagabond that will destroy the fish and that you are serious about fishing as you have paid money to do so. but TV isn't something that needs to be taken seriously, paying for channels isn't what the problem is about (which is what you seem to think Intrepid is winging about) the problem is you need a TV License to watch TV anyway, regardless of what channels you have, it just so happens that BBC are funded by the TV license. Also, your TV License money goes towards the bloody Eurovision song contest. A definate reason to be annoyed! You need a license to just use a TV, if you don't have a license and you have a TV in your property, the authoroties can seize the TV and fine you. How about that for bullshit?
You haven't indicated you've even been in the UK but when you are paying TV license and all you do is use the TV for gaming, or even hook it up to your PC for stuff, you would complain too. Now-a-days it's not so bad as standard channel list is about 50, 30 of those are useless, but once upon a time not so long ago there were only 5 channels, before that only 4, before that only 3 and before that only 2 which were BBC1 and BBC2.