So you're 0 for 50. At least you've got spunk-- or maybe a hard head? And about this Neolithic farmer massacre, look at any color coded European haplogroup map and glance over hg. I vs. hg G (or hg. E or J). That comment is pure nonsense.
It's like looking for russian fishermen at 50 german dentist's offices and giving up because you didn't find any, or rather looking at 50 people in 3 german dentist's offices and only two are russian fishermen.
http://hauridna.com/haplogroups/haplogroup-g/
Sources seem to agree that g comes out of caucas or anatolia. Now the etruscans were probably mostly G and they believed they came from anatolia, and their cattle has anatolian DNA.
They are spread pretty thin to start with which is why they have more or less disappeared in modern times.
Among those neolithic farmers (most all of them come from one site in france where we expected to find G) there's a handful of I, maybe 10%. There's also a handful of I in ever single area that didn't become part of the bell beaker megaculture. And right by all the megalithic sites. This implies that the I were generally spread into the r1b HG and to the neolithic farmers who were in scattered communities and not ever the majority.
We basically know that the G ane e1b came in around neolithic time and introduced farming.
http://dienekes.blogspot.com/2008/05/ancient-y-chromosome-studies.html
If there's any other studies let me know but here's a rundown on what we have.
Neolithic Linearbandkeramik from Derenburg [2 F*(xG,H,I,J,K), 1 G2a3] (5,500–4,900 cal B.C)
Neolithic Spain [5 G2a, 1 E-V13] (5000 BC)
Neolithic Ötzi from the Alps [G2a4] (3300 BC)
Prehistoric South Siberians from Krasnoyarsk and
here [10 R1a1, 1 C(xC3)]
Neolithic southwestern France from Treilles [20 G2a, 2 I2a] (3000 BC)
Neolithic Megalithic France from la Pierre Fritte [2 I2a1]
Neolithic Bell Beaker from Kromsdorf Germany [2 R1b] (2800-200 BC)
Bronze Age from Tarim basin in Xiaohe [7 R1a1a]
Eneolithic Corded Ware Germans [3 related R1a]
Bronze Age Lichtenstein Cave in Germany [estimated presence I1b2*, R1a1, R1b1c] (2000 BC)
Ancient Mongolian Xiongnu [1 R1a1]
Aboriginals from Canary Islands [E-M78, E-M81, J-M267, E-M33, I-M170, K-M9, P-M45, R-M269] (200 BC-500 AD)
Late Antique Basques [4 I, 2 R1b3d, 19 R1(xR1a1), 2 R-M173] (600-700 AD)
Late Antique Imperial Roman from Bavaria [2 R1b, 2 I1, 2 E1b1b, 2 I1/G2a] (700 AD)
Medieval Germans from Ergolding, Bavaria, Germany [4 R1b (two siblings), 2 G2a] (700 AD)
Medieval Germans (?) from Usedom, Mecklenburg-Vorpommern, Germany [E1b1b, R1a1a7]
Medieval Swedes from Stockholm [2 I1, probably related]
So far as I know that's all the DNA remotely relavent and then some.
First off we see tons of r1a, looks like it's been all over the place and then some. If anything it's lost some ground not been gaining (which unlike what some say is what we should expect to see).
Then we see that r1b is all over, too.
The only standouts are at one study in france we didn't expect to find any r1b anyway, which accounts for 22 of the less than 50 neolithics we have tested, and one in spain where we would hope to find r1b but didn't. Then we get 2/2 r1b in bell beaker 5k years ago. So when you put it in those terms it's not as bad as it sounds especially since everything in BC times is full of r1b. Especially since again, the DNA found with the other two sites is associated with the inland route of farming. Spain is at least as concerned about nationalism as greece, and in all likelihood will be splintering apart, so no surprise they choose a safe bet. I am guessing if they find/choose more HG and nomad sites they will get more r1b, but aside from site selection I believe they are hard to find as well.
Now since you were humorously talking of elite edinburgh r1bs, think of who many of the Gs are. They are the ones deciding who gets funded in the first place. They could care less about finding filthy commoner DNA and if anything would rather none is found so as not to give anyone the idea that they had some kind of claim to their own land.