you can get plenty of apple oem parts in china you can even build ur own phone as one guy on you tube has done so it is not like there fake batts parts ect.
apple is even sewing one repair guy over fake screens but there not fake they are real apple displays but as he sent them to china to have the glass replaced and nothing else apple calls this a non apple product and fake and had the lot seized at customs.
lets just hope one state supports the right to repair bill as then the rest will follow and apple wont have any choice to offer spare parts for 3rd party repair.
But the first part of your answer above does not deal with the question of fraud by the chinese factories (either selling genuine parts to people outside their contract with Apple or fraudulently using the apple logo on parts they have designed and made themselves).
Your video earlier does deal with fraud - by Apple stores (telling a customer lies about what is wrong with their machine). Presumably western countries have laws that could deal with that (fraud).
And I worry about whether the right to fix law WILL actually solve the problem. I have a Honda motorcycle that cost me about $12k but someone priced up the bike by pricing every spare part from the official Honda spare parts list. I think it amounted to over $50k and of course that didn't include any labour. So is Honda committing fraud in its pricing of spare parts? If we think 'no' but they are charging too much, how much is too much?
On a more general philosophical note - If a company develops the best product ever in the history of the world (I'm not saying Honda or Apple have by the way), and one which continues to perform its role for 30 years without ever breaking down except when customers damage it, and they make replacement bits available at cost price, then after they have sold their first billion units in 5 years, what do they do for the next 25?
Mike
PS - I have a beautiful Macbook Air that is now 7 or 8 years old, whose battery seems Ok, that has never gone blue screen or been infected with a virus - I switched to iphones at the same time but am on my 4th - but only because the phone company 'give' me a new one every 2 years