Earlier quoted context omitted.
Mainly (70%) from a TV licence, the rest from selling their IP to other markets. https://en.m.wikipedia.org/wiki/Television_licensing_in_the_...
> Mainly (70%) from a TV licence Whose existence is voted and that is managed by... the Government?
In the UK, parliament is sovereign and can ultimately do anything so they could vote to change this arrangement. This is the case with anything. Parliament could vote to execute left handers.
The fact remains, what you said is false;
1. The BBC are not on the government's payroll
2. They regularly hold the government to account
Your criticism is nonsense Libertarian speculation that is refuted by the real world.