The boat people make up only about 3% of immigrants annually. It's always been an irrelevance. And most are given leave to stay anyway.
But it's the great symbol of invaded, pissed of Britain. And it keeps The Daily Mail, permanently offended brigade happy .
When you go into any negotiation you must do your research and tie up loose ends. For example, before you tender for a job, the client will present you with a ten page list of clauses full of eventualities which your workmen are responsible for. I used to present them with a similar list checked by legal people to cover myself. I