Things is, there is so much rhetoric by both sides. It seems impossible to dig down to what the actual truth IS. What are the actual facts? And this difficulty in finding out what actually is the truth and what is spin I think is what makes people just shrug when another accusation like this is levelled.
Personally I think JC is a good, principled man. I do not believe he is either racist or anti-semetic. However, I also think he sometimes acts foolishly, and he does not have a firm enough hand on his party - probably because he is concerned that if he acts too decisively those within his party who despise him will rebel. And this leads to him not taking action or speaking loudly enough when he really should.
He is not perfect. I would, however, prefer it is politics was filled with more people like him and fewer like BJ or RM. However, it isn't, and that means he isn't a good fit as leader or a party. Which is a shame.