So those arriving by small boat are not illegal immigrants, never were, until and unless they arrive in UK and don't claim asylum.
So why do you keep calling them illegal immigrants when they're not in UK?
Those that do claim asylum are therfore asylum seekers not illegal immigrants.
So why do you keep calling asylum seekers in UK illegal immigrants when they have the right to be here?
All you had to do was to accept that tides are not the only factor affecting crossings.
Don't bother inviting me on your boat for a channel crossing. I prefer a sailor with a wider knowledge of such things.