Polarize the electorate along whether they believe in the Abrahamic God AND practice an Abrahamic faith. Everyone who isn’t Jewish, Muslim, Baha’i, or a practicing Christian votes D, while the aforementioned groups vote R.
This strategy wouldn't work under current metrics because minority Abrahamic faith practitioners would largely view this strategy as one in service of Christian nationalism, which they would peg as a much larger threat to their identity than secularism. This is big reason why the ooky spooky "secular" Democrats already do so well with these groups as is.
And non-orthodox Jews have an extremely tenuous attachment to the "faith" side of their Abrahamic faith at best, so this angle wouldn't work with them even if it was somehow retooled into a more inclusive approach
