Is it true that Jews and Arabs are the worst of people, and why did God send the most beautiful heavenly messages to them?

Allah chose the Arabs by revealing the Quran in their tongue and by making the Seal of the Prophets one of them. Although the message of Islam began in Arab lands, it is for all of humanity. A distinction must be made between Arabs as an ethnicity and Judaism as a religion; Muslim Arabs are the best of nations, while the Jews, who distorted their religion, are the worst of people. The statement that Islam is ink on paper is false, as many Muslims adhere to it. The decline of Muslims in certain eras was not due to a deficiency in Islam, but rather to their lack of adherence to it. Islam addressed both Arabs and non-Arabs, and no one can claim that Islam would have been better if it had been sent in Japan or Germany. The value of a person is not in worldly possessions, but in their servitude to Allah. The future belongs to Islam, and its decree will be elevated to encompass the entire earth.