All illegals should be sent back immediately, no putting them into holding centres etc until their request at asylum is processed, in fact our country should not be bothered with asylum seekers since there are plenty of safe countries they can settle in en route to the UK.
The Normans constructed moats around their castles so as to keep invaders out, we are an Island fortress and the Channel, North Sea, Irish Sea and the Atlantic Ocean are our moat which should keep all invaders out, just as they did during WW2.