You haven't really picked the best example here, because in the last decade the UK literally gave Scotland a referendum on leaving the union. So yes, the UK doe

You haven't really picked the best example here, because in the last decade the UK literally gave Scotland a referendum on leaving the union. So yes, the UK does support a right to self-determination, even for integral parts of their territory. It's also worth noting that in response to China's moves in HK hundreds of thousands of HK residents have fled to.. the UK.