To wax "spiritual" here - scripture says that He has broken down the middle wall between us. So all else is really just a lie! However, we either cling to Him and His truth . . . or to a lie that there are things separating us.
Here's how Adam is: At the hearing of the slightest word from another that is just a degree sideways to our established thinking, we usually get defensive and think we have to put up some barrier to protect ourselves. Silly man! (We have no hope apart from Christ - in Him we can now simply put off that unproductive manner like an old garment!)
Sidebar: What is happening in US politics with its extreme and irrational polarization is a testament to Adam's nature . . . (really that of his father BTW). Think this ridiculous behavior is unique to the secular (i.e., non-Christian) world? Think again! In Adam, no matter how good he tries to be, the result is always separation. (and if you think to yourself, "Well it's them that are being extreme and ridiculous," that's Adam)
Sorry if that was a little too heavenly minded to be of earthly good, but that's what came out!
