I am not claiming I haven't heard that argument before or that I don't understand it: I am claiming that I don't think this is what the person I was replying to

I am not claiming I haven't heard that argument before or that I don't understand it: I am claiming that I don't think this is what the person I was replying to meant when they said they pay taxes to help themselves and not other people, particularly given the explicit explanation "don't tax people in one country to help another".