Actually, no. Home students don't get treated the same. Check your facts before getting defensive, maybe?
There are countries whose citizens are classified as 'native' speakers of English. Each university typically has a list, but for the most part, they're the same. For example; a citizen of Belize needn't show any form of English competency, whereas a citizen of India must.
Secondly, the cost for a postgraduate hovers between 14k to 23k, depending on the course/college of your choice. Thirdly, as my original post stated, I believe industry experience (especially if you're using English, on a daily basis) is more than sufficient proof of competence.
I'm not going to attempt to educate you further on why this is problematic, or what the possible solutions are, because it seems you be putting very little effort in that direction yourself, before replying. The UK government sets the policy, yes. Universities have the agency to waive it off.
Also, whether you 'buy' that 160 pounds is a hindrance is irrelevant. The way costs add up, any money saved is well worth it. People with a very clear grasp over the language don't need to be put through the humiliation of their past education and work experience being questioned as valid 'metrics'. Passing or failing is entirely besides the point.
I'll take your point about the personal statement being coached, though. That's an entirely different problem.