Please recreate the Rhine Uralic dialect for me, then. Because Corded Ware spread all the way to the Rhine. The various original home areas of Uralic languages set up by people who speak and actually know the history of Uralic languages and peoples are far to the northeast of where the earliest R1a samples have been found. If you want to say Indo-European was spread by R1b peoples, fine. If you are going to make up ridiculous stories not supported by decades of research and science to buttress your pet political ideologies, YOU ARE FAKE NEWS.
That's one of the caveats in that hypothesis. AFAIK no sign of a Uralic substrate has ever been found in Central-Western Europe as far west as the Netherlands and Switzerland, and Carlos Quiles wants us to believe that the
huge difference between Proto-Uralic and Proto-Indo-European was the result of a linguistic divergence only 2,000-3,000 years before they started to expanded in different ways. He also wants us to believe that IE subgroups that are usually estimated by linguists to have diverged particularly early (e.g. Italo-Celtic vs. Balto-Slavic/Indo-Iranian) actually derive from an once common Northwestern IE language that started to split into distinct families
after the BB expansion (and yet less than 1,000 years later Vedic Sanskrit and Mitanni were already totally Indo-Iranian-like). No way, sorry.
Besides, it's just incredible that he wants us to believe Uralic is correlated with R1a-M417 when the vast majority of R1a-M417 individuals in Europe are and were historically Indo-European speakers, but he wants us to see no correlation at all between Uralic, N1c and small ammounts of Siberian admixture (all of which are consistent with an original expansion from north and east from the PIE Pontic-Caspian homeland), when virtually all modern Uralic peoples have those signals even if in minor proportions (Hungarians are really an outlier in many, many ways, their demographic history was just too complex and convoluted).
FWIW, I do think some Proto-Uralic speakers did belong to R1a and even more specifically R1a-M417, because in my opinion the earliest Proto-Uralic homeland was peopled essentially by EHG people with low CHG admixture and a varying bit of Siberian admixture - therefore, nothing like CWC or any former Pontic-Caspian culture. But that's totally different from claiming that CWC was Uralic. In fact, there is a high likelihood that CWC contributed more than Yamnaya to spread CWC languages.