I have a close allistic friend, that friendship got built before I knew about me. But... their behavior and statements and refusal (stated refusal) to understand sorted themself out of my closest. They're still close, but nowhere near as close as my autistic besties. It's just not possible.
I can share my innermost thoughts and views with someone who says my sensory issues are "the power of suggestion from hearing that autistic people have sensory issues".