All DNA will show is that they have ancestors from a certain area, not if it was from Abrahamic or Semitic lines, since we have no DNA directly from either, so nothing to compare it to. Even DNA from Judahites or ancient Israelites would not be valid. Since Shem-ites were comingled with Abraham' other 2 sons in the middlle east, it means very little. No purity. However most modern Askenazi are descended from slavic/turk area males, who were mostly middle eastern - including Cannites, Babylonians Jebusites et al genetically, and european females. So much for that maternal line nonsense.

Here is one of the more plausible explanations of Ashkenazi, the majority of Israel's Jewish population, origins, imo:
theconversation.com/ashkenazic…

So no. DNA does not confirm or deny the claims at this time. It comes closer to denying than confirming tho.

Ashkenazic Jews' mysterious origins unravelled by scientists thanks to ancient DNA

DNA evidence tracks the ancient history of the Jewish people.

^{The Conversation}