Re: There is no possible fix
To be fair to Tesla, FSD (and possibly autopilot too) operates very differently in the countries it's available in. When I moved to America I was surprised how much better it works here than in the UK and the additional features you get in FSD which work here. In the UK it's currently a pointless upgrade because of what you mentioned (plus you don't get a $7500 tax credit for buying one) I noticed on the UK site just now that you can also only buy the model X and S in left hand drive configs in the UK, which seems...unusual.
As for pedants pointing out that Tesla doesn't advertise in the conventional sense so they've never mis-represented the feature, they have a website, registered to and run by them, through which you buy the product, ergo the descriptions have to be accurate. To quote what's on the UK site "Autopilot enables your vehicle to steer, accelerate and brake automatically within its lane." No caveats to this statement are provided.
Interestingly, in the US, you can clearly get away with even more bullshit, because Enhanced Autopilot is advertised as containing Autopark, Summon and Smart Summon, which have actually not been possible since Tesla decided to remove all the parking sensors on all models to save money last year. On the UK site, they are marked as 'Available soon' This kind of grifty post-truth attitude to facts and safety is why I'm not buying one any time soon.
Other manufacturers in the US like Chevrolet, GM and Ford brands have Blue Cruise which is certified to be completely hands free (but not attention free) only driving on freeways which have been mapped in their database and is ahead of Tesla in that regard. How it copes with emergency vehicles is unknown though. It's not available in the UK yet to my knowledge,
Anyone with a modicum of knowledge about these systems (gleaned from maybe reading the manual) should know the limitations of them outside of their own wishful thinking or Hollywood movies. For example, my Audi start-stop traffic assist and auto cruise is useful, unless somebody sharply pulls in front of me to close the gap. I know I have to disengage the auto cruise system and break, otherwise this would cause an accident right there, because the car does not detect the new distance in time to slow down automatically. The German cars I've owned from established manufacturers make these limitations abundantly clear.