Israeli comrades in America (I assume you mean Jews in general, and are equating all of them to liberals) are not the only Jews who use BCE/CE. Ultra-right-wing political/religious Americans use it to— and are not offended by the Mt Soledad Cross (though that probably does offend liberals of any stripe.) So don’t read the news about a Jewish king of Israel if he is references in a non-Christ dating system. So... for you... it happened 3,076 years from the date G-d created the heavens and the earth...which was 5776 years ago. Cool?
God did not create the heavens thousands of years ago as you assert. No one knows when God created everything.
Rubes like you are sloppy in your thinking and expression. For all we know Adam may have lived as an immortal being in the Garden for a billion years. Scripture says he lived 930 years but no one knows if he lived 930 years from his EXPULSION or CREATION.
But the terms BC and AD are not mysteries. These terms are defined. To alter their meaning and significance is a clear revision of history and insults historical truthtellers by encroaching on history’s domain.