This is an unfounded objection because: Answers to every so called contradiction exist. The problem is that those who raise this objection either are unaware of the solutions, or are unconvinced by the solutions offered. Furthermore, the expectations of ancient literature readers are different than modern conventions.
Often a simple understanding of textual and cultural context clears up apparent contradictions. Many supposed contradictions are based on an individual’s interpretation. Again context and an ability to consider other interpretations is important here. When reading the Bible, many often forget that they are studying an ancient document, that was translated from a foreign language, in a far away part of the world, in a culture that no longer exists.