@Tommy
Thank you for clarifying your intent. Apologies for misinterpreting. I understand why you were holding up a mirror to Brian’s beliefs. I hope you can see that after discussion, Brian’s behaviour towards others has now softened.
Personally, I understand why those who are in pain reject others. That pain comes from a place of distrust because people expect to be treat how they have in the past.
From my perspective, showing someone who is distrustful that you are trustworthy can be helpful. This may lead to them giving others the opportunity to build trust and result in developing fulfilling relationships.