Yeah… that quote is basically a greatest-hits album of race-forum pseudogenetics + 19th-century slur-laden anthropology. Let’s dismantle it cleanly, piece by piece — scientifically, then conceptually.
I’ll keep it tight but thorough so you can drop this on them and walk away.

“Europeans descended from Yamnaya, WHG and EHG”
This is already wrong.
Modern Europeans are not some neat three-way mix. That 2014 model (EEF + WHG + Steppe) was:
A rough early approximation
Explicitly stated by Lazaridis et al to fail for many populations, including:
Sicilians
Maltese
Ashkenazim
Southern Italians
Cypriots
Finns
North Russians
Later work shows at least 5–7 ancestral streams in most Europeans:
Anatolia_N
Levant_N
CHG
Iranian_N
EHG
WHG
Steppe_EMBA
plus later African and Arabian inputs in the south
So the idea of “Europeans = Yamnaya + WHG + EHG” is 2014-tier outdated cope.
Even Northern Europeans are not “pure Steppe + HG” — they have substantial Neolithic Anatolian ancestry.

“Andronovo were Northern Europeans”
This is flat-out false.
The Andronovo horizon was:
A Steppe-derived Indo-Iranian complex
Already admixed between:
Steppe_EMBA (Yamnaya-like)
CHG / Iranian-related ancestry
Located in Central Asia, not Northern Europe
They were not “Nordic Europeans who migrated east.”
They were Steppe populations that had already diverged from European Steppe groups and mixed with southern populations.
By the time Andronovo emerges:
They are less “European” genetically than the Steppe groups that entered Europe.
So even by his own racial logic, Andronovo are already “tainted” by southern ancestry.

“Middle Easterners have 10–15% Andronovo DNA”
Also false and confused.
What some West Asian populations have is:
Steppe-related ancestry mediated through:
Indo-Iranian expansions
Caucasus populations
Bronze Age interactions
But:
This Steppe ancestry in Iranians, Kurds, Armenians, etc. is older and more diluted than in Europeans
It is not specifically “Andronovo DNA”
And it is not the main source of any “European phenotype”
Also, the biggest Steppe signal in West Asia is often found in:
Armenians
some Iranians
some Caucasus groups
Yet these populations are genetically closer to Greeks and Southern Italians than to Northern Europeans.
So again, his racial framing collapses.

“European phenotype comes from Andronovo”
This is pure racial mysticism.
European phenotypes (skin, hair, eye colour) come from:
A mix of:
Anatolian Neolithic ancestry
WHG ancestry
Steppe ancestry
And post-Neolithic selection pressures in Europe
For example:
Pale skin in Europe is mostly from Neolithic farmers, not Steppe
Lactase persistence is Steppe-linked, but not “European phenotype” as a whole
Many West Asians share the same skin-lightening alleles as Europeans
So the idea that “Andronovo DNA = European looks” is just Nordicist fan fiction.

The slur-laced “Iranian shitskins” part (conceptual rot)
This is where the ideology shows.
Scientifically:
Iranians are not genetically distant from Europeans
Many Iranians are:
closer to Southern Europeans than Finns are to Italians
closer to Greeks than Russians are to Greeks
Ancient Iran was one of the core ancestral sources of Western Eurasian populations
Historically:
The same people who invented “Aryan” ideology in the 19th century
originally included Iranians as the prototypical Aryans
Nazis literally classified Iranians as Aryans
The modern internet racist calling Iranians “subhuman” is historically illiterate
So this isn’t even consistent racism — it’s badly copy-pasted racism.

The hidden contradiction in his worldview
Let’s use his own logic:
If:
“Europeanness” = Steppe + WHG + EHG
Andronovo = Steppe-derived
West Asians have some Steppe
Then:

West Asians should be partially European

Southern Europeans should be partially Middle Eastern

The Europe/Middle East boundary collapses
Which is exactly what real population genetics shows.
So the only way his worldview works is by:
Ignoring the actual clines and forcing political boundaries onto genetic continua.
That’s ideology, not science.