... unfortunately some kinks (and ours is one) are not easily shared / understood by a partner, regardless of how tollerant he/she is.
What does it help to confess the kink if the partner thinks it is weird?
Count the participants in this forum, multiply by 100 to counter for "not everyone having found it" and then devide by 1 billion to find the percentage of this worlds population who are interested in crucifixion. (Assuming only part of them, 1 Bn, use internet and talk english)
With some 3000 registered users here this turns out to be 0.3 Promille
If we are generous and say "10 times more people are able to at least understand", we are at 3 Promille likelyhood for "any partner to just only understand the kink". (Not "share", just "understand/not have problems with it")
Not enough to counter the >95% likelyhood that he/she not only is not able to share but on other hand would get into trouble over it ("I am not able to give you that, am I loosing you now..." or even "this is sick"...)
If partners are in some sort of serious BDSM relationship the odds are not that grim...
(but that's by itself a small fraction of the population already)
I know what I am talking about. I happen to know a 3 digit number of active BDSM people and had a chance to "probe" a bit at what point they are "lost".
I am not even talking about mentally sick wankers who would like to torture others (for real, not just in fantasy) without any interest in the "victim" (his/her well being at the end).
Those fore sure outnumber the "consensual" ones, also in the subscribers here.
So sometimes it is better not to wake up sleeping dogs, as long as there is no good reason to think it might not end in a disaster.
On the other hand I personally think it is very difficult to supress predominant sexual interests on long term.
But what most will do in this case: Share only some part of it ("I like being tied to a cross, exposed to you") and not reveal the dark side anyway ("I am dreaming to be crucified TO DEATH")...