Trident is sucking the RN dry (and based in an area which might not even be part of the UK if the clowns at Westminster continue the way they're going) - there is an opportunity here for the Government of the UK to cut the deterrent loose entirely. Some say the nukes guarantee the Security Council seat (never explaining the mechanism by which it would be removed) but the reality is that a Permanent Member who loses the ability to meaningfully participate in Chapter VII actions shouldn't have one whether they have nukes or not.