that is a flawed arguement albeit a very contentious level of understanding that the 3 books are manipulated beginning at the original hebrew text which christian bible has translated AND altered some key words, muslims reinvented torah Q'uran for all its fight for authenticity BUT without gods power of presence like the jews.
Now, I do not deny a possible conspiracy even at the torah level BUT you must have logical and scriptural proof. What I am doing here is using old testament (torah) to expose the New testament which is very clear and logical and just. chrisitians kept in the shadow will have a chance to realise and make a decision to leave bcos of contradiction to gods words.
But if you say god of isreal is NOT real. That is the final frontier and NOBODY can prove it because
1) there is no greater entity (other religion gods) that tried to contest or make this claim declared by the holy One of Israel. With supreme justice, mercy and prophetic power unseen in this earth. Is that not a good starting point. Logical right?
2) the law is very detailed and helpful to human beings. Example, the clean food laws : sea creatures with scales and fins ae considered clean. tell me, during that time, who or what power on earth can come up with something so true and proven by medical experts today that without scales and/or fins creatures are not healthy as they are scavengers? Even if you assume that is just a human being, where on earth can a human being derived something so scientific and at the same time beneficial proof (PHYSICAL PROOF).
IF that is not our creator talking then you must find A greater logic than what you just said - conspiracy of ALL three main books with ill intentions.
The other two is very FAITH based and esoteric (alot of their core stories of claims are mysterious) so its like you here trying to CONVINCE with words. thats all.
But Torah is the most true because its FAITH is based on LAWS that have endured and proven SCIENTIFICALLY and practically to help people here on this earth in terms of everyday life, the land, and even the stars and heaven. Only an enemy of righteousness (law abiding people) unless proven with a greater power is the WICKED people. Because this is what is happening to the state of the world when we are forced to not follow gods laws from pagan leaders - anarchic capitalism in the guise of democracy and freedom.
I hope you see the truth.