Are Christians considered Anti-Semitic?

Anti-Semitic, what does it really mean? Who and what is a Semitic person or tribe? What does the word “Anti” mean? Who,what and where is the meaning of “Jew”? Did you know that God divided the 12 tribes of Jacob, The House of Israel from the House of Judah and that they are still very much scattered around the world even in today’s time?
These are all questions that are very “taboo” and hard to answer in today’s time, but I pray that we might be able to gain some insight and understanding without “hate” or “blame” towards others and especially not against our true brother Judah.
Our Lord Jesus Christ has given us warnings about these days, who has ears to hear, let him hear.
May God bless and strengthen us all according to His will.