you have it backwards. the linguistics and archaeology proved the khazar hypothesis, after long debate. what's being fought tooth and nail is the genetics -- and that the ashkenazi are derived from them, which will almost assuredly be proven true in the future much as the original conversion hypothesis was. all the tells are there. the idea that some remnant of the original surviving ~350 pharisees intermixed with khazar women matches with the overlap of khazar conversion. this is a good explanation of the obvious inbreeding and disease due to genetic bottlenecks.
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