Have you ever heard of Tay-Sachs disease?
"Jewish" is still not a race.
You mention "Tay-Sachs". Let me ask you this,does the fact that the F.L.D.S. church has an extremely high amount of fumarase deficiency, an enzyme irregularity that causes severe mental retardation, mean that the Fundamentalist Latter Day Saints, is a "race"?
F.L.D.S. is not a race and neither is "Jewish", no matter what you think.
French Canadians (Which is also not a "race") of southeastern Quebec have a carrier frequency similar to that seen in Ashkenazi Jews
Cajuns of southern Louisiana (Also not a "race") carry the same mutation that is seen most commonly in Ashkenazi Jews. HEXA mutations are rare and are most seen in genetically isolated populations.
"Jewish" is not a race", Just tell yourself, "Hey, I learned something today" and get over it.