What he did was so egregiously insulting, but it won't shift votes. The non religious are more likely to be disgusted by this than his faux Christian base.
This obviously isn't going to alienate any of the Evangelicals and radicalized Catholics who are holding Trump's balls on church-and-state issues and know it, but there
are other elements of a Republican minimal winning coalition that have much less appetite for performative political Christianity, like the affluent
moderates
the "LAW AND ORDER" authoritarianism is allegedly supposed to win back.