The original “Rus” were Swedes who subjugated the Slavs.
When the Slavs chased the Swedish rulers back to Scandinavia, the Slavs couldn’t rule over themselves and begged the Swedes to come back and rule!
Anyway, the Khazars always considered the Slavs, particularly Russians, their enemy #1 because it was the Christianized Russian Empire that destroyed the Khazar Kaganate. Their revenge on the Russian took on a savage fury, as witnessed in the barbaric massacre of Christian Russians under the ■■■ Bolshevik rule in the 20th century.
Again, Khazars were Asian Gokturks but later mixed with their own slaves of various origins who lived inside their territory. Khazars were notorious slave traders and they even invaded Slavic lands to “harvest” slaves.
No wonder it was the Khazar ■■■ slave traders who brought slaves to the Americas, which is generally blamed on whites nowadays.