You want to see anti-Christ look no further than the catholic church. They do not have the Son, but claim to be His substitute.
Jesus said we are One in Him. When they claim our authority as given to them as His substitute, they deny the Son.
Whatever you do for the least of these, you do for Him. Whatever you do not do for the least of these, you do not do for Him. When they disqualify ANYONE, they disqualify Him.