Sorry to hear that friend. The silver lining is that you were probably not a good fit in that position. Not your fault but if that’s there attitude towards stuttering, it’s for the best you’re not with them. That’s what I told myself after I get rejected i interviews. Another good thing is that they were honest. I had many interviewers that made up BS to reject me even though I was overqualified for the position. The last thing I’ll leave you with is that you can’t educate everyone and people will always have false beliefs about things. Don’t let that bring you down. Better things will come along. Trust me, I’ve lived it.