Do You Think Everyone Is Autistic?

I often find myself come across people claiming "I'm a bit autistic" saying everyone is a bit autistic.

I point out to them so many things they refer to as "autism traits" are not autism traits at all but is just general human behaviours by all people, but when an autistic person does it it gets described negatively.  

Stimming as an example, I see nearly everyone stim, so many people tapping their foot on the floor, some picking their nails, some just twirling hair etc. because they do something an autistic person does they assume they're a bit autistic. 

When I tell them doing something labelled "autism trait" doesn't make them a bit autistic, that people are either autistic or not, I back it up asking "I sometimes say a metaphor, does that mean I'm a bit neurotypical?" I point out to them autism is a neurodevelopmental condition. 

I say "people with bipolar have mood swings, I hear most people have mood swings, so does everyone have a bit of bipolar disorder?" 

They still go claiming everyone's a bit autistic. Do you agree with the people who say everyone's a bit autistic?