Bill I accept that I should probably be asleep instead of debating UK immigration policy with strangers on the Internet, but I'm really struggling to see how you got that from what I wrote.
Of course we should be trying to control numbers. And to a very large extent, we do. Visas are not handed out willy nilly to anyone who asks for one. UK passport control is located in France, not Dover. Freight vehicles are searched using various bits of kit. Enforcement teams deal with in country migrants with no legal basis of stay. I'm certainly not suggesting we lay out a giant welcome mat to anyone who fancies bypassing the need for a visa and popping in for a few years. However, the very fact that thousands of people actually have arrived in the UK without passports and/or visas, or have overstayed their visas, or have got visit visas and claimed asylum on arrival, is pretty indicative that this particular area is not one that can be easily or fully controlled, which is the point I was trying to make. If we could control it, there would be no economic migrants, no overstayers and 'Call me Dave' could dictate how many asylum seekers the UK considers applications from, right down to single figures.
I also didn't say (and certainly don't think) that anyone who wants to get here will. I have no doubt that there are millions of people in horrific situations all over the world that would love to start a fresh life in safety in the UK, as well as those living in real poverty who believe our streets are paved with gold. What I actually said is that if someone has enough money (needed to pay the traffickers) and determination (needed to withstand the terrible conditions in places like the jungle in Calais) the chances are that they will eventually manage it. I stand by that and whilst you're perfectly entitled to think I'm very very wrong, it doesn't mean that I am.
What I do take some issue with is your second post. I'm giving the benefit of the doubt and assuming you mean that applicants can be returned only after their application for asylum has been considered and any appeal rights exhausted? And that if they originate from a country that requires a travel document issued by the authorities of that country, they either have a passport or they cooperate with the documentation process? I'm also assuming you're referring to Sierra Leone as a designated 'safe' country for certified asylum decisions (which I believe only applies to men, not women, and is actually a deeply unsafe country if you happen to be gay!) Well that's all well and good, but what about people deemed as stateless? Or undocumented nationals of countries that won't issue travel documents? Or economic migrants who disappeared upon arrival and now have British citizen kids and a significant Article 8 claim? I'm afraid I can't link on this iPad but the BBC published an article in August 2015 to do with failed asylum seekers which is definitely worth a read, and obviously the documentation part would apply to economic migrants as well. Also, if you have a look at the Immigration Rules as well (off the top of my slightly hungover head, it's around para 276, Appendix FM, EX1) that deals with Article 8 claims, and the circumstances in which people can qualify to stay. It really isn't as simple as 'sending them back', even if they are from a designated country.