Why did the Romans choose to destroy and overthrow Jerusalem?

The Romans had a particular hatred towards traitors. Crucifixion was the normal punishment to traitors and runaway slaves, and there were occasions in which traitors to Roman enemies were punished. read more

By the year 70, the attackers had breached Jerusalem's outer walls and began a systematic ransacking of the city. The assault culminated in the burning and destruction of the Temple that served as the center of Judaism. In victory, the Romans slaughtered thousands. read more

Short answer: the Jews ticked off the Romans. Jerusalem did not fall because God was especially angry with the Jews or because they sinned more than the non-Jews or because some of them participated in the crucifixion of Jesus. read more