It is a sound practice as thousands of years ago there was no DNA testing. As such your mother had to be Jewish for you to be accepted as a Hebrew. Why? Because you could always be sure of who the mother was.
Good to know, there are a few Jews i like, You are one of them, OMR and Wiggs are two others
And Scarlet J of course
Im sure there are others who were Jews that i didnt know about