More media word play with bogus assumptions and conclusions. There’s LOTS of home-schooled ‘Bible-thumpers’ who don’t go to church, and even more shy of the ‘thumper’ level who are Christians nonetheless!
I wouldn’t dismiss this; there is no reason anyone looking in from outside would assume this is a religious country. While “gay marriage” is forced on Americans against their will, the fact is most are OK with divorce/remarriage, extramarital sex, artificial contraception, and many accept abortion-on-demand as well.
There is little evidence that Americans are religious (at least within the context of traditional faiths).