We are actually really good at discerning prelest in the orthodox church.
What's the process look like to discern a priest?
You really must think we are stupid or gullible to even suggest that we would hop to follow through on some random vision in a dream simply because the one having the dream claimed it was Jesus. If a bishop told us to worship Satan, he'd probably get chucked into the river along with losing his position
Well, the one having the vision (not just a dream, because Jesus is in it, its a vision!) would, in this hypothetical, already have been discerned as a priest or elder in your church. And again, I'll explain that this is not a bishop or priest demanding you worship Satan. Honestly, how hard is this to understand? A priest, someone who's been discerned by your church, prayed really hard, has been a good priest so far, has a vision wherein Jesus comes to him and gives him this pronouncement. Why is this priest's experience less believable than, say, the Road to Damascus conversion experience, or the time an angel appeared to Mary saying god was coming down there to put a baby in her?
I'm kidding. I know you're struggling with this one because answering "no, I'm not comfortable with that" recognizes that you don't trust Jesus enough to find enough kids on his own to keep the lights on at your church. It recognizes the absolute crucial stage of religious development, the naivete of youth, wherein you can convince an otherwise rational person that an unseen entity controls all the cosmos, and is somehow only responsible for the nice things, not the bad things. It's why you continue to try to change the hypothetical. You can make your own, you don't need to change mine.