One of the ways Jesus can make a “come back” is through faith on earth. Jesus asked rhetorically if He would find faith on earth when He (literally) returns; this seems to imply the answer is no.
He’s holding back for all the souls that God knows still need salvation. No matter their years on earth, both that boy and his killer will have to face the same Judge. I am learning that it is wiser and wiser to defer to God’s wishes.
“If any of you offend one of these little ones I say unto him; better he had never been born.”- Jesus of Nazereth.