In my experience, this is a 2-way street. On one hand, with my alexithymia, my bad experiences with emotions, and my upbringing, I am highly logical and without emotional expression. Think Spock from Star Trek. As a result, if someone is telling me their troubles and how they are feeling, I may have little understanding or perspective, and my natural inclination would be to logically fix the problem. I am not going to give you emotional support or validation. I have no use for it in my life and my bias is neither do you. Fix the problem and be done with it, no more complaining. On the other hand, if I am having troubles and express how I am feeling, usually angry and frustrated, I see people backing away. I've never in my life had anyone give me any sort of emotional support or validation. I don't know what that is.
If you are one that just wants me to listen to your story and your feelings, I can do that, but some people get upset with me trying to fix the problem when they just want emotional support. I am not the person you need to talk to, if that's the case.
I've also been actively and passively dismissed in my younger years by older adults, parents, etc. that simply thought "this too shall pass" and would not take me seriously. There has been some truth to the experience "this too shall pass", but the fact that others didn't take me seriously in the moment, put me off to ever expressing my personal concerns ever again. I just suck it up and internalize it. No one wants to listen to my issues, this much I know for sure.