The question of whether ISTJs lack empathy is a complex one, as it depends on various factors and individual differences. ISTJ is one of the 16 Myers-Briggs Type Indicator (MBTI) personality types, and it stands for Introverted, Sensing, Thinking, and Judging.

Empathy is the ability to understand and share the feelings of others, and it involves being able to put oneself in someone else's shoes and experience their emotions. While ISTJs may not naturally prioritize emotions and feelings, it does not mean they lack empathy entirely. Here are a few points to consider:

1. Different expression of empathy: ISTJs may express empathy differently compared to other personality types. They tend to be more practical and action-oriented, focusing on finding solutions and providing tangible support rather than solely relying on emotional support. This can sometimes be misinterpreted as a lack of empathy, but it is simply their way of showing care and concern.

2. Difficulty in recognizing emotions: ISTJs typically rely on their dominant function, Introverted Sensing (Si), which focuses on gathering and analyzing information from past experiences. This can make it challenging for them to recognize and understand the emotions of others, especially if they are not familiar with similar situations. However, with practice and conscious effort, ISTJs can develop their empathy skills and become more attuned to the emotions of those around them.

3. Empathy in action: ISTJs often demonstrate empathy through their actions rather than explicitly expressing emotions. They are known for their reliability, loyalty, and willingness to help others in practical ways. They may offer practical advice, provide resources, or take on tasks to alleviate the burden of others. While this may not align with traditional expressions of empathy, it is a way for ISTJs to show they care and support others.

4. Emotional reserve: ISTJs tend to be more reserved and private when it comes to their own emotions. This can sometimes make it difficult for them to connect with others on an emotional level. However, it does not mean they are incapable of understanding or empathizing with others' emotions. ISTJs may need more time and trust to open up emotionally, but they can still provide support and understanding to those around them.

It is important to remember that personality types are not definitive indicators of a person's ability to empathize. While ISTJs may have certain tendencies that can make empathy more challenging, it does not mean they lack empathy entirely. Empathy is a skill that can be developed and improved upon with practice and self-awareness.