Skeleton old chap,
You seem to be lacking a few fundamental facts:
There were a shed-load of USMC Harriers flying in GW1. Yes they got shot up quite a bit, but that's because they were down and dirty over the battlefield. If you recall, our Tornados also got pretty badly shot up at low level too, so it wasn't exactly a flaw in the aircraft, perhaps more in the tactics.
The FARP concept is still a nice idea and was used in GW2. There were 2 of them within 100nm of Baghdad, complete with a nice ring of grunts and Patriots for security - none of which got left behind. For the UK there's always the Falklands FARP at San Carlos - or does that not count either? And to reiterate a point from earlier in the thread, just because the satellite photo of Kandahar shows a huge long runway does not mean that the useable strip on that airfield is 10 000ft long - otherwise other fast jets would be able to use it. It's 25 min transit time closer to the current fighting than Bagram, so Kandahar itself isn't terribly far removed from the FARP concept either.
There were very good reasons why the UK GR5 didn't get involved in GW1 - it was brand new at the time and had extremely limited weapons clearances (a bit like the Typhoon now). But that bears no reflection on the capability of the aircraft today. In addition, we were sending just about every other serviceable fast jet airframe and it's not always sensible to put all your eggs in one basket is it?
So you admit that in some scenarios it's a match for other small fast jets, when operating off runways (usually much shorter ones than anyone else). At the same time it has additional unique capabilities - and that's an argument for scrapping it? Where's the logic in that? And as for your last point - it is doing the job right now, and has been for years. In which case, there's no justification whatsoever to 'bin it'. IMHO your opinion is totally irrational - did a Harrier mate spill your pint once? If so, I'm sure he's very sorry. Now get over it.

Single Seat, Single Engine, The Only Way To Fly