BC and AD replaced “The Year of our Lord”, so you were already using the scaled down more secular version.
My 1948 birth certificate says "In The Year Of Our Lord"
But it no longer matters ... WE are the watchmen on the tower ... just as we have bullied them into calming down about the "Happy Holidays" BS ... we are the ones to teach our children ... otherwise, all THEY have to do is wait a few more years to spring it on a dumbed down populace