Nobody ignored Jesus.  The more they got to know Him, they either loved Him or hated Him.  Those who were against Him could not argue logically against His teaching and so they slandered Him.  They accused Him of not being a proper Jew, but a Samaritan; and not being from God, but belonging to Satan.  In accusing Jesus of blasphemy, they uttered the greatest blasphemy by ascribing the glory of God to the devil (Isaiah 48:11).  Jesus pointed out that by dishonouring Him, they were also dishonouring His Father whose judgement was hanging over them.
 
But they could not understand.  When Jesus said people who obeyed Him would never die, they made the assumption that He was talking about physical life and death.  Obviously, everybody will die at some time, as did Abraham and the prophets, so could Jesus really stop death happening?  Was Jesus greater than their honoured prophets?  But their questions were not asked sincerely: they were arrogant and cynical attempts to discredit the Son of God.  So too was their question "Who are you?" It was not the first time they had asked the question. In John 8:25, His answer was "Just what I have been telling you from the beginning".
 
The identity of Jesus does not depend upon people's opinion but upon His self-revelation.  Because He was God in the flesh, we do not have any experience by which to evaluate Him.  We cannot work out His identity for ourselves; we need to believe what He tells us about Himself.  But sadly, even though many people heard His words and saw His miracles their sinful hearts were blind (John 9:35-41).  They could not see that this man was their Creator and Saviour.

Today, if anyone tries to work out who Jesus is without accepting His words, they will always go astray.  That is why it is essential to encourage our friends to read the Bible accounts, so that they may understand more of what He claimed and then commit themselves to keeping His Word and receiving His salvation.  The personal challenge for each Christian is to delve deeper into the self-revelation of Jesus in the Scriptures, and then to relate with Him in a way which will honour Him; and then share with others what a wonderful person He is.