Precisely. Religions are in decline among the younger generations. By the time we go to Mars as a colonizing species, hopefully we won't bring "faith to a deity" with us.
There's plenty of other damaging ideologies to take their place. Look at the extremist 1% on either side of the left/right political divide for examples. Religion isn't a cause of negative ideological/extremism, it's a symptom of cognitive tendencies that give rise to it.
