If all a creationist did was to declare their belief and ask if others would like to hear their story in an effort to persuade. And expanding that to acceptance that some or many others are not interested for their own reasons, I think we would all do better. But personal belief is taken to the extreme with the idea that everyone should have the same belief. It is used to bash others, dismantle education and destroy valid paths to information and understanding of the natural world. That sort of weak, fearful approach disturbs me greatly. Fortunately, not all theists are like that, but is enough that some are. Ever the concern about the quality of apples and how the state of one effects the entire barrel.
Continuing on with another line of thought this thread inspires, another nut to crack out of that nut bowl sitting on my table.
Proselytization.
The fear I have been primarily looking at in a fear vs. faith comparison is an existential fear. Dread of the Abyss, meaninglessness to one's very existence. Existential Despair, in other words. Everyone confronts this in life and grapples with it at one level or another. For most, as they distract themselves with activities and concerns of life, that question is pushed out of the way, but it still is ever-present like the uniformly distributed background radiation from the Big Bang.
For some, that question is much closer to the surface, and its tensions create an existential anxiety. Angst, is the term the Existentialists use to describe this overall tension. For others still, there comes a direct confrontation with this, facing the Void, or the Abyss head on, and pass through that veil of terror of nonbeing to find liberation from the fear of it, which has been present and affecting everything in life. This is what "salvation" is really about. Other familiar terms for that is Enlightenment, Awakening, Satori, Freedom, Liberation, etc. It is our individual confrontation with the Unknown, and being liberated from the fear of that. It is a death experience that confronts us as in our whole being.
So how all of that ties into proselytizing, is that as compensation, or rather an avoidance of that ultimate confrontation with the Abyss, people try to find meaning in other things. Meaning in belonging ranks quite high, because there is safety in group bonds. One is accepted by others, when you follow the rules, and that gives meaning to one's own existence. Without it, there is no true sense of self where we find absolute meaning without the other. "Hell is other people" Sartre said, and I think the meaning becomes clear. Our meaning is found outside of ourselves, and that creates Fear, or Dread.
Bring back what I said about developmental stages now. In that basic stages of structures of consciousness from Gebser, you have archaic, magic (tribalism), mythic (ethnocentrism), rational (Modernity), pluralistic (Postmodernity), and Integral (Post-postmodernity, or Meta-modernity). At the mythic stages, this is the ethnocentric stage. One's sense of identity is tied to be in the group.
It creates a certain "fiction" whereby one can trust others outside their immediate circle of acquaintances. It creates a system of "us and others", or outsiders, pagans, heathen, foreigners, immigrants, etc. (cf. today's political climate). There is a great impulse driven by this belongingness need to fit in. People within these systems look for similar features they can relate to in others, making them part of the group.
Trying to get others to believe as you do, is driven by this existential insecurity, that others who are like you will protect you from that dark unknown growling out there in the bushes at night, with only the campfire and your friends to keep you feeling relatively safe from that predator just beyond where light can reach. The closer to tribalism we are, the more afraid of the dark we are. We are exposed to that terror of the Abyss. Therefore, the more safety in number compels us to look for others like us, who we can tell are just as afraid as we are. If they believe like us, then we are no as alone anymore. "I'm with God's people!", becomes a salve, an appeasement of that fear. We believe.
On the other side of that, because the drive for an exclusivist, us vs. them reality is so high, a drive for conformity to set, rigid, and authoritative rules which decide who is in and who is out, non-conformity is sternly rejected. "You're either with us, or against us". And so with a system which generates this tone, it's efforts to seek more members will reflect that. "Come join us and be loved. We pray you don't end up in hell like those others who hate our God". It is very black and white, true or false, God or the Devil, good vs. evil in its structure.
I'll make a quick footnote to this, before I let this digest some. I see this same thing with those who have left fundamentalist camps, becoming disillusioned with the prerational beliefs of the mythic structures as they themselves are having the rational stage start to come online, realizing easier rational targets such as "Noah's Ark can't possibly be real! How stupid!".
That this same black or white mentality carries over from their fundamentalist programming they are still running. It's like that saying, "you can take the boy out of the country, but you can't take the country out of the boy. Changing what one believes in, doesn't necessary change how one holds those beliefs. It very much can be just simply flip sides of the same coin.