Saw a post pointing out that the idea of a Saturday-Sunday weekend is in itself cultural Christianity being applied to the whole “secular” world, that in Israel the weekend is Friday-Saturday and in some Muslim-majority countries the weekend is Thursday-Friday or only Friday (in others it’s Friday-Saturday as well.)
Anyway to make a truly secular and inclusive world I propose a Monday-Wednesday work-week and a Thursday-Sunday weekend. I think anyone of any or no religion could all get behind this.