And why is this a problem? BBC programmes are made for a British audience; that's why Brits pay for them. They have British news, British weather, British humour, and take place in dismal British towns. Will your licence fees go up if other people watch too? Will it lower your quality of life? Will this make a shit of difference to the BBC?
Does it bother you or did you even know that in Belgium, to name but one country, they have been watching the Beeb for free for decades? Does it bother you that Spanish, French, and talian drivers don't have to pay on British motorways? Would you like to see toll booths installed to catch them?
Do you really believe that when you watch ITV you don't also pay? Someone must or it woudn't exist. And if you watch French TV, who pays? Does your watching advertisements for Carrefour and Auchan and BNP and Justin Bridou saucisson fund the French stations? Or are you getting them for free while everybody in France shops at exorbitant prices?
Any way I look at it this objection, is a non-sequitur.