For God has not given us a Spirit of Fear, but of power and love and a sound mind. Therefore do not be ashamed of the testimony of our Lord.
2 Timothy 1:7-8
In America we thankfully have the First Amendment which protects our speech and permits us to have intense theological and spiritual discussions about our faith regardless of who it might offend.
Discussions about Jews, Judaism, and Jesus Christ are obviously central themes in any robust theological and Biblical debate going back 2,000 years. Jews likewise, going back to the beginning, have not hesitated to discuss what they see as Christian errors. The point is: neither Christians nor Jews are beyond criticism, discussion, or even mockery.