What is the wisdom behind not building an Islamic civilization that we can be proud of, if Muslims will die after fighting the Jews and the descent of Jesus (peace be upon him), and then Gog and Magog will come, along with the major signs of the Hour? And is it true that the remaining lifespan of humanity does not exceed 100 years?

The descent of Christ Jesus (peace be upon him), his killing of the Dajjal (Antichrist), the emergence of Gog and Magog, and their demise are among the major signs of the Hour, which will be followed by the death of the believers, and then the Hour will commence upon the worst of people. The wisdom behind this is that the believer cultivates the earth and strives for good until the very last moment, as stated in the Hadith: "If the Hour commences while one of you has a sapling in his hand, and he can plant it before it commences, let him do so." The duration of Christ's stay after his descent will be forty years, during which the Antichrist will be destroyed, and Allah will destroy all religions except Islam during his time. Then he will pass away, and the Muslims will offer prayers over him. As for the knowledge of the Hour and its appointed time, that is something Allah Almighty has exclusively reserved for His knowledge.