Does the religionism of some that takes verse out of context while disregarding contextual verses show up in our judgement of people? Do we take a snapshot of a moment in time and use that to label people?
Hmm. Not sure what "religionism" means unless it refers to not being careful about what one hears from preachers of said religion. Religious pastors (priests, deacons, etc) are often treated as authority figures within the faith and just taking what they say as truth without careful consideration I would consider a kind of "religionism".
However, if by it you mean "applied misunderstanding - either by willful ignorance or nescience" then it certainly abounds. A few examples I see:
"Judge not lest ye be judged" - often taken to mean not using judgement (or discernment) in detecting evil at all - which is not the understanding I have of this verse. If one reads just a few verses later, the context reveals that the judging person cannot see clearly because they are doing the same thing - they are hypocrites and that is why the measure they use is being (or going to be) measured to them.
"Wolf in sheep's clothing" - people often misuse this verse and forget that this isn't just about any sinner or teacher of some false doctrine - but a particular kind of one who claims to be a prophet. "Watch out for
false prophets, for they come to you as wolves in sheep's clothing".
Does anyone think they know what the shut door means and the 5 virgins who can't get in? I'm fairly sure I know, but it would not be accepted here by most, I know that.