Jesus did not say this in any way disrespectfully..... Note the scripture:
John 19:26-27 (KJV) [SUP]26 [/SUP]When Jesus therefore saw his mother, and the disciple standing by, whom he loved, he saith unto his mother, Woman, behold thy son! [SUP]27 [/SUP]Then saith he to the disciple, Behold thy mother! And from that hour that disciple took her unto his own home.
Here Jesus was more concerned about His mother than He was Himself.
Jesus was without sin. That pretty much settles it.