I believe this applies to a large segment of the population. Diction, tonality, and "vibe" have a big effect on how open recipients are to cold calls, at least according to my SDR friends.

OP likely just has more self-awareness than most in being able to be honest about it.

Personally I'm just not open to cold calls, period, ever. Not ever

I don't actually understand why anyone would be. Please don't waste my time trying to sell to me. If I'm in the market for your service, I'll let you know