Both INTPs and INTJs can be sensitive in their own ways, but their sensitivity might manifest differently due to their distinct personality traits.
INTPs (Introverted, Intuitive, Thinking, Perceiving) are often known for their logical and analytical approach to the world. They may be sensitive to criticism of their ideas or work since they invest a lot of time and energy into understanding complex concepts. They may also be sensitive to disruptions in their need for alone time and introspection, as they highly value their inner world.
INTJs (Introverted, Intuitive, Thinking, Judging) are strategic thinkers who seek to understand the underlying principles of the world. While they may appear more composed and less openly emotional, they can be sensitive to incompetence or inefficiency in their plans or systems. They might also be sensitive to personal criticism if it challenges their competence or vision.
In summary, it's not accurate to determine which type is universally more sensitive, as it depends on various factors, including individual differences, upbringing, and life experiences. Both INTPs and INTJs can exhibit sensitivity in different areas of their lives. The MBTI should be taken as a tool for understanding general personality tendencies rather than a definitive measure of an individual's sensitivity.