"So if such an individual is sat perfectly safe on a beach in France, why would they "risk their lives on a dangerous sea crossing, often after giving everything they own up in order to pay criminal gangs", if it wasn't because they know there's a far better payday waiting for them on the UK side of the channel? Why does even Macron say that the UK is a "soft touch" and that they keep coming for exactly that reason?"
Firstly, bear in mind that more claim Asylum in France than the UK, and also that currently France has bettered the UK in standard of living and disposable income in recent years, so your arguments of the UK being a soft-touch or a better payday compared to France is demonstrably false.
"If you think the UK should bankrupt itself trying to save the entire world from poverty,"
This is the real problem, many people in the UK have become so obsessed with the idea that illegal migration is our number one problem, which is consistently leading to idiotic voting patterns, based on slogans rather than logic, and obviously the problem just gets worse.
We're doing very well at bankrupting ourselves without factoring in illegal migration. Most councils are bankrupt or on the verge of bankruptcy, Government Debt continued to rise despite years of "Austerity", with public services scrapped/reduced, a massively increasing Social cost and Welfare bill (and no, not to due immigration). But most people don't seem to notice or care about these critical issues, it's the boats that gets them worked up, even though their lives have never been impacted in any way by it.