The secular used to be non-religious. Scientists are prone to be atheists, who are “anti”-religious. There’s a difference. Humanism has become an atheist haven for promoting the multiverse. It threatens to limit the inclusiveness that many depended on and expected when referring to the secular.
Agnostics and the spiritual are typically not materialists. Human power is in the meta-physical, but we distribute it as physical manifestations.Perhaps another way to describe them and the classic secular could be as materiallish. That type of thinking would be materialishness operating on an identical platform as classic secularism we could call Materialishnessism.
Then again, maybe not.
Anyway, thanks for your time.