If Jesus did not exist then Jesus was not a Ashkenazi Jew
If Jesus did exist then Jesus was not an Ashkenazi Jew
If Abraham did not exist then Abraham was not a Ashkenazi Jew
If Abraham did exist then Abraham was not an Ashkenazi Jew
If Jacob did not exist then Jacob was not a Ashkenazi Jew
If Jacob did exist then Jacob was not an Ashkenazi Jew
If Moses did not exist then Moses was not a Ashkenazi Jew
If Moses did exist then Moses was not an Ashkenazi Jew