I just had someone very close to me who I’ve reconnected with, be very surprised at how severe my stutter had become. His attempt at consoling during a talk we had was to say that he also stutters. I get what he meant, but boy - that’s a can of worms I didn’t want to get into. It’s not that he was invalidating my experience. It was that he felt he was relating to me by saying that he also stutters and it isn’t a big deal. I’m not upset with him though, it is quite really a lack of understanding and education on the subject. If I had the time and effort, I would explain to him why it is not the same thing, the difference in what’s happening physically and neurologically, etc. You can’t be upset at someone for being ignorant. It’s excusable. It’s really on you and how you are interpreting the situation that determines how it impacts you emotionally. Don’t give that power away. They aren’t intentionally trying to invalidate you, although it may feel that way. It would help to not assume the worst of their intention. Like u/nukefudge said - there are people who want to say kind or reassuring things despite not being familiar enough with what they’re talking about.