Poor reading comprehension, as usual. Your comment does not in any way address what I actually said. I was talking about the genetic makeup of Europeans prior to the introduction of ANE in Europe. I think that, regardless of where Basal Eurasian came from originally, it could have reached some parts of Europe from North Africa, rather than coming through the Balkans, just as was likely the case for some of the Paleolithic and Mesolithic European population. And of course what people generally seem to forget is that there's been repeated and massive population turnovers in North Africa, so even if we had better information about North African DNA, we wouldn't expect to find too much evidence of some of the migrations that passed through North Africa over the centuries. And yes, some of it came from Europe and a bit from Subsaharan Africa (probably quite a bit during the Paleolithic and Mesolithic) but most of it came from the Middle East in modern times and probably also during the Neolithic.
Edit: To spell out what I thought was already clear, I was talking about the percentage of WHG to Basal Eurasian. I hope nobody is arguing that the IE expansion is the reason Sicilians have more Basal Eurasian than is found in Neolithic EEF samples. And while it's always dangerous to use modern populations to try to trace ancient population movements, some aspects of modern populations can only be explained in terms of Neolithic or earlier populations. If that wasn't true, there would be no point in these maps.