The Royal Navy needs at least 150 new ships.
I’m sure something can be worked out.
The shipyards in Belfast may have provided financial justification for the UK to retain Northern Ireland while withdrawing from what became the Republic of Ireland. The Protestant majority in Northern Ireland identified as British and were vehemently opposed to becoming part of a majority Catholic state. However, Britain had to have some motive other than their sentiments to justify retaining Northern Ireland. In our time, that reason is gone, and the UK is no longer a world power.