This is a very complicated question, so what else is new when we talk religion.

I’ve read quite a bit of Jewish history and Judaica and I’m not sure there is an absolute answer to that question. One ‘forum poster’ pointed out that many Jews did convert, and as obvious as that sounds, sometimes we overlook that fact. Human nature seems to lend itself to a strong conflict with ‘the truth’ when it doesn’t fit with OUR expectations or wants or needs. The Jews were waiting for a ‘warrior Messiah’, to free them from persecution, not their sins per se. During Jesus’ lifetime, Judaism had become more philosophic with a heavy Hellenistic influence, and the strong ruling class would naturally feel threatened by a ’ false prophet’ that appeared to undermine their authority. The Jews did have their share of true ‘false prophets’ in their past, which I’m sure had muddled things a bit… but historically, they treated many of their 'true prophet’s with the same disdain. Skepticism is natural and healthy. But many of the greatest prophets were rejected in their own time. ‘Saint Stephen’ rails against this very fact in Acts. Quoting ‘Gods’ very own O.T. description of the Israelites:
Acts 51
“You stiff-necked people, uncircumcised in heart and ears, you always oppose the holy Spirit; you are just like your ancestors.
52
Which of the prophets did your ancestors not persecute? They put to death those who foretold the coming of the righteous one, whose betrayers and murderers you have now become.
53
You received the law as transmitted by angels, but you did not observe it.”
And our Lord even said that a prophet is rejected in his own town.
Jesus did not fulfill the majority of the Jews EXPECTATIONS of what the Messiah should be. But their will wasn’t Gods will. If a teaching doesn’t fit a ‘mans’ idea of what it should be, it is easier to reject it and stay ‘stiff necked’ rather than bow to the will of God. The Jews of that age are no different than most ‘people’ of this age.