Antitheism

[MTL]

Anti-religious.  Or, if you prefer, an anti-religionist, lol.  MTL

Antireligion is distinct from atheism (the absence of a belief in deities) and antitheism (an opposition to belief in deities), although antireligionists may be atheists or antitheists.

https://en.wikipedia.org/wiki/Antireligion

Doesn't fit the bill for me.  I think religion is a hell of a tool.  I don;t blame the hammer for striking the nail, as it were....and I personally think that a better religion would yield better results.  Sagans "religion of nature" comes to mind.

I've considered that:  Anti-Religion, sure why not.

I am still opposed to belief STRUCTURE, about a spiritual realm, which is UNPROVEN, but touts itself as factual and unassailable.  It is open to interpretation and can go rancid quickly.  It becomes corrupted.

However it's interesting you would say this;

just the other day I was thinking wistfully of how happy my family was when my siblings and I were young children,
even though it was rigidly religious.

I concluded that structure, discipline, standards and values are good,
but religion causes them to become judgmental, repressive, and controlling,
and that is not good.

I concluded that "church" was good for community, music, meditation, discussion,
but bad for elitism, sanctimoniousness, competition, judgment and pretense.