Living the truth is a narrow path, because reality has a specific shape & we can only deviate so much without serious consequences. But there are an infinite number of ways to live a lie & destroy yourself & others.
We should not expect people who prioritize feelings over reality to have the capacity to be honest. If a person considers themselves a woman because they "feel" that way, despite having a dick, then they cannot even be honest with themselves. Their definition of "honest" is literally based on arbitrary whims, so when things do not go their way they will "honestly" tell you that they feel like it is the fault of anyone but themselves. When caught in a lie they will again ramble on about their feelings. They are not interested in objective reality.