Whenever the word of Allah (i.e. the Quran) is challenged, it always rises to the occasion. So why not put all other beliefs to the same test, the same standard, and see if they can produce the counterarguments, the logic, and evidence that undeniably come with the word of Allah.
The revelation of the Book is from Allah, the Exalted in Might, the Wise.
We did not create the heavens and earth and what is between them except in truth and [for] a specified term. But those who disbelieve, from that of which they are warned, are turning away.
Say, [O Muhammad], “Have you considered that which you invoke besides Allah? Show me what they have created of the earth; or did they have partnership in [creation of] the heavens? Bring me a scripture [revealed] before this or a [remaining] trace of knowledge, if you should be truthful.”
And who is more astray than he who invokes besides Allah those who will not respond to him until the Day of Resurrection, and they, of their invocation, are unaware.
Surah Al-Ahqaf (46 – 1-5)
The fact that all other religions contain incongruities, incoherencies, lies, fabrications, and flawed logic; is a testament to the truthfulness of the Quran. Don’t think that these incoherencies apply only to religions, but philosophies and theories. These philosophies and theories have become beliefs and laws in their own respect (just like atheism and all its dead ends).
Each one of the precedent (religions and philosophies) advances claims and justification, but none advance proof nor truth. Yet the proponents of these views spread them as truth.
Unfortunately, these false leaders will bear their brunt of the blame just as their followers who accepted to be lead astray.
And who is more unjust than one who invents about Allah a lie or denies His verses? Those will attain their portion of the decree until when Our messengers come to them to take them in death, they will say, “Where are those you used to invoke besides Allah ?” They will say, “They have departed from us,” and will bear witness against themselves that they were disbelievers.
[ Allah ] will say, “Enter among nations which had passed on before you of jinn and mankind into the Fire.” Every time a nation enters, it will curse its sister until, when they have all overtaken one another therein, the last of them will say about the first of them “Our Lord, these had misled us, so give them a double punishment of the Fire. He will say, “For each is double, but you do not know.”
Surah Al-Aaraf (7 – 37-38)