The UK is a failed state.

They are literally copying 1984.

The UK is like the US but smaller and with worse policy.

The UK is still deeply dependent on their monarchy to form opinions, but one must realize the reason monarchies were replaced in most of the world was because organizations grew and evolved that could perform better than monarchical systems.

The UK is currently the 6th biggest economy in the world and just like Japan their GDP rank is going to keep going down over time. They peaked even earlier than Japan and their core advantage that made them a great power, being the key industrial revolution player, has been lost to them.

The UK also suffers from getting lower quality immigrants after the US has already gotten all the good ones.

The 2008 crisis in part was reached by the limits of how much economic growth can take place because of banks. The US had to optimize new methods to develop their economy further. Meanwhile the UK remains doubling down on the banking sector and other people's money to keep them alive, which limits how far they can grow without transforming their economy.

Current day UK is on its way to being to The British Empire as Mongolia today is to the Mongolian Empire.

The UK has laws that don't help either. Time and time again we have seen that nation states which use their people as expendable resources tend to do worse than nation states that are built up on giving equal rights and protections to their people. In the UK all the laws appear to be built to have the common man in a hierarchy where even the every day cop is far above the individual in terms of rights and authority. This makes the US the equivalent of a third world nation with a good banking system.

The UK also suffers from its tendency to go 1984 on their own populace, becoming even more aggressive towards their own internal populations for having the wrong ideas and thoughts. This has resulted in an ever clearer top class and the rest of the UK divide which shows that the UK isn't a stable enough nation state to grow and prosper long term.

The UK never truly modernized. Their people are too scared of participating in the world and giving up any control even to their own benefit. The UK left the EU which was a decision that clearly left them worse off in the long run. The UK right wing then turned on its own people internally who did not match how the average Britisher is supposed to look like according to them. The police and political apparatus in turn turned on the conservative population to extremes where they are in turn treated as second class citizens. No matter how things play out, there will end up being a clear second class group in the nation state.

The UK acts as a nanny state. They don't even trust their citizenry to be able to handle a butter knife. Their prisons are full, and their quality of healthcare was continually stagnating due to budget cuts in the past decade. The UK wants its populace completely dependent on the crown or the political apparatus of the state to the point where they are akin to a toddler taking instructions from their mother.

The UK has already achieved high population density. The only way for it to keep growing would be to overpopulate its lands until most people have to live in rented housing and no common man can afford to buy their own apartment. The UK is still spamming the get more people to solve the problem technique, but the UK doesn't have the required land to comfortably fit in all those people, and the UK doesn't have people of the required education level coming in to live as immigrants in the UK.

All western nation states outside of the US are suffering from the issue of not being able to get the required quality of immigrants for it to be a net positive within a generation. All the other nation states including the UK have to cross their fingers and hope things will work out within 2-3 generations and the immigrant population will assimilate by then.

The UK keeps moving backwards when it comes to basic freedoms for people, to the point that it isn't incorrect to say that the UK is jailing people for wrong think. The UK has ended up creating a two step justice system where on one end there are actual expectations from the white UK population to be able to follow the minutae of the law, meanwhile the brown ones are expected to be too stupid or too much of victims to be needed to follow the expectations of British law in any detail.

The UK is set to fail as it is a shadow of what the US is. A bad imitation of the best system in the world without any of the actually useful traits. The US has a competence based immigration system. The UK has a whoever we can get our hands on type in comparison. The US remains focused on constant adaptability and change to keep societal growth going. Meanwhile, the UK is a monarchy which is a system by default incapable of the required levels of change and adaptability to ensure that the UK prospers in the short and long run.

UK influence has been going down year on year. Today, most nation states would rather deal with the US or the EU than they would with the UK. The UK still hasn't been able to reconcile with this fact. Behaving in ways suggesting that they still think they are a mighty empire deserving of praise and respect from everybody else.

The only thing the UK today is truly capable of is protecting its borders from outside threats, which matters less and less every year and they are internally hollowing out. Turns out if all of Asia cannot get along, then importing all of Asia in the same ratios to the UK will also end up with the UK not working out.

Conclusion:

The UK is falling behind. One day even places like Mexico and ASEAN will overtake the UK. The UK cannot adapt any further and it is stuck where it is with no more space to grow in any meaningful manner.