“I am the way and the truth and the life. No one comes to the Father except through me.”
No one is arguing THAT truth.
Actually, they are. They claim that their interpretation of Scripture is the Truth taught by Christ.
Paul warned us this would happen, "For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear. They will turn their ears away from the truth and turn aside to myths." (2 Tim. 4:3–4).
Fortunately, we have Christ’s promise that heresies will never prevail against the Church. They will arise, endure sometimes for centuries, like Protestantism, but we can be confident in Christ’s promise that the Church will always teach the Truth.
Martin Luther was one of these men Paul warned us about. He so wanted to believe in his “Truth” his view of salvation by faith alone that he tried to remove James from the Bible. But the only place in Scripture where ‘faith’ and ‘alone’ appear together is in James, where it is refuted. "You see that a man is justified by works, and not by faith alone." James 2:24. You have to go through mental and verbal gymnastics to say the clear language of the Bible does not really say what it really says.
So yes, many want their Truth instead of the Truth Christ taught.