I think you'll find a lot of our capability has been promised for the North Atlantic at some point...
Maybe to stand up politically to the orange rapist
But you are right in the fact that the UK has very little real firepower...
Successive governments have pared back the armed forces to such an extent that we lack a credible fighting force...
The only reason the UK is erroneously considered a country to be reckoned with is because of two lame duck carriers and nukes...
The former can't sail without a helping hand from other nations in order that they aren't just multi billion pound floating targets, and are also reliant on US jets...
The latter barely keeps one sub at sea at any one time, and is also reliant on the US.
We are now in a very dangerous world, and need to work with our closest and most reliable allies - Europe!