It's how Americans portray many things, look at the movie Sampson. He's portrayed as a sort of Arnold Swartzenager or how ever that's spelled, truth is if he was this big muscle man, why was the enemy having such a hard time discovering the Source of his strength?
When the angels came to get Lot out of Sodom they blinded the inhabitants so they could not find the door of Lot's house. I've wondered about this....I don't think the text is saying they couldn't see with their eyes ie, they were blacked out. I think it is saying they couldn't discern where the door was in spite of it being in front of them.
In like manner the enemies of Samson were blinded.......and so it is with all who don't have the unction of the Spirit. For all the pious words and self justifications made, they do not see. This being the case it is a pointless exercise trying to use logic to persuade them.....if their eyes are closed, if their minds have no heartfelt desire to discover truth, they will not see.
Pray for your enemies Jesus said.....yes, that the eyes of their hearts may be opened.
Enquiry, enquiry, enquiry into the mysteries of truth is the indication of God's Spirit at work. Self justification, argumentative, proof texting, judgement of others and the need to have the last word are all indications of the inability to see.
We can ask ourselves the question....where do I fit?.....what is my heart's objective? .....do I genuinely carry a burden for the Salvation of those I interact with?