Agreed. When people say “spiritual,” what they often really mean is “emotional.” We have a vast suite of emotions and emotionally-driven behaviors, and some of them are good. Love, honor, trust, friendship, cooperation, etc. A great many of our pleasures are emotional.
Religion often keys in to basic emotions. Churches have known this for centuries. They get people together in one place, with beautiful music, group participation, and promises made in a voice of absolute certainty. These are powerfully appealing to people.
Religion also often appeals to the nastier emotions. It often uses fear, anger, bigotry, and divisiveness. Religion has a long history of violent schisms, crusades, pogroms, inquisitions, and the like.
I only really differ from you in one regard: I think that, in a free society, beneficial religion can have a legitimate place. If it makes people feel good about themselves, if it relieves their fears of death, if it eases their grief, well… Shrug… No skin off my knees. Religion, at that level, can simply be a kind of personal aesthetic, an individual viewpoint. It’s a personal preference, like optimism or pessimism, or liking one variety of food or disliking another.
I only get alarmed when some jackknob pipes up and says “Everyone must view things my way…and you can’t eat bacon, either.” At that point, a free society has a new enemy.
It is remarkable, though, how very few times “atheism” has ever been that enemy.