This is talk of kufr and shaitan is behind it. The Quran is a miracle and there is proof of its preservation and verification as word of Allah. Even if youโre thinking logically, itโd make the most sense to follow the religion which has the most likelihood of being true. Even if youโre a hardcore atheist, thereโd be solace in knowing that your loved ones would go somewhere nice where you could possibly see them again. Wandering aimlessly and creating your own rules can negative result depending on the individual, Islamโs set of morals keeps us on a straight path. All they can bring to Islam is slander, as all their arguments against it get shut down.