I think, prejudice aside, people generally don’t mind folks who keep their views on religious subjects to themselves. Proselytizers for any view arepretty hard to take; most of us tolerate the first event kindly and then avoid the subject going forward.
Everyone is promoting something, and men like Hitchens, Dawkins, et. are increasingly strongly promoting - their views, or ideology much as those in formal religion, and State-sanctioned secularism effectually promotes atheism and ever morphing morality, in rejection of the “old paths.