Neither was all R1a or R1b.
But 99% of R1a in the world is young M417, and it correlates very well with PIE expansion, both in aDNA and now.
Just like most of I1 is young and correlates with Germanic migrations (are there any subclades of I1 which aren't Germanic)?
As for R1b - here indeed we have some major subclades which do not correlate with IE. For example Chadic V88:
https://en.wikipedia.org/wiki/Chadic_languages
We also have V88 in Neolithic Iberia, and those people didn't speak PIE (maybe they spoke Chadic, maybe something else).
Is this true that J2 carried CHG?
There are many areas with more CHG than India, but very low percent of J2 and R1b, look carefully at those maps.
I'm just confused that you are so firmly believing in your hypotheses with complete lack of any evidence
So far I have 71+ Ancient samples of R1a as evidence, and overwhelmimg majority of them are from IE cultures.
On the other hand R1b (45+ Ancient pre-Medieval samples) is a little bit more ambiguous. Not to mention J2.
Mind you that level of many Neolithic hgs is higher than any R1a subclade in Western Europe, outside of reach of Corded Ware expansion. Not even one subclade of R1a was successful their? Isn't it more likely that R1a didn't take part in Western IE expansion?
Well you say that R1a is low in West Europe, but so is autosomal PIE. Autosomal PIE is high in Norway, Lithuania, North-East Europe, etc.
Why do Norway, Lithuania, North-East Europe - all of which have a lot of R1a - also happen to have more "steppe PIE" autosomal DNA ???
BTW - we can say the same thing about R1b in India. And as you also noticed, recently English language expanded without British DNA.
Also the highest percent of R1b is among Non-IE Basques and Genetiker found R1b-M269 in Neolithic Iberia (and several other researchers confirmed his calls, AFAIK - Maciamo also thinks that it is legit). This is kind of troublesome, unless you want to claim that PIE homeland was Iberia.
Also vast majority of R1b from Yamnaya is Z2103, which is Eastern R1b. There is not a single sample of R1b-L51 from there.
According to some researchers, if R1b-L51 really came from the steppe, then it did so
before the emergence of Yamnaya culture.
So people who insist that Khvalynsk wasn't PIE, but only Yamnaya was, will need to acknowledge that R1b-L51 is not PIE.
And why not buy dominance like in India, Hungary, Turkey and many attested others.
Because "Steppe PIE / Yamnaya" autosomal DNA is high in R1a-rich areas - and lower in Western Europe.
By contrast, "Original East Asian Turkic" autosomal DNA is indeed low in Turkey.
High steppe Y-DNA + low steppe autosomal fits better a "dominance by a few steppe chieftains" model, than the opposite.
Women are actually more important in passing down autosomal DNA. But they don't have Y-DNA.
Basques have a lot of R1b-L51, yet autosomally they are pretty much Non-Indo-European (linguistically too).