Love for Enemies 43 “You have heard that it was said, ‘Love your neighbor a and hate your enemy.’ 44 But I tell you: Love your enemies b and pray for those who persecute you, 45 that you may be sons of your Father in heaven. He causes his sun to rise on the evil and the good, and sends rain on the righteous and the unrighteous. 46 If you love those who love you, what reward will you get? Are not even the tax collectors doing that? 47 And if you greet only your brothers, what are you doing more than others? Do not even pagans do that? 48 Be perfect, therefore, as your heavenly Father is perfect.
26 “If anyone comes to me and does not hate his father and mother, his wife and children, his brothers and sisters—yes, even his own life—he cannot be my disciple.
Matthew is self-explanatory and if Jesus didn't give the "sages" the credit for preaching that over the ages it was probably because they examplified the opposite.
As for Luke, within the context of that chapter, Jesus is explaning that to follow Him and His way ( Love, compassion, forgiveness and such) one must be against, even hate, those that oppose those very things, even if they be their own family or themselves.
Jesus reamed the scribes and the pharisess for their hypocracies and for using their influence to speak for God, just as Jeremiah did before him.
Obvioulsy it wasn't a "new issue", the whole "do as I say and not as I do thing" seemed to be an issue with the "priestly class" as it is still to this very day.
The fact that people can take isolated passages from the NT to make them presecute Jews just proves that epople are easy led and typically lazy and stupid, not that the writers were "jew haters" or anything of the sort, especially since they were Jews.