The Ashkenazis are in now manner related to Biblical Hebrews nor are the Semitic.
Actually you are wrong. DNA and genetics of modern day European Jews show they have strong paternal DNA ancestory to the ME. The fact that their DNA is mixed with other populations is simply what you'd expect from a group that has been migrant and stateless for much of recent history..
Besides "Jewishness" is an issue of religion not DNA..