Illogical Argument

I think it very illogical to require would-be believer to read Bibles and understand the so-called truth before you are eligible to know more about Christianity. It is very absurd to declare that ours is the only true God and that the only argument is Jesus is the only perfect man god and that you have to trust him and everything will be alright. If their evangelism has not better logic and content, I think they will distance themselves from the multitude.