The theoretical basis for typology is that each type has certain innate characteristics. For ESFPs, these are outgoingness, gregariousness, playfulness, among others. Most of these don't correlate with intelligence, as least to SJs and NTs, hence the "stupid ESFP stereotype". Most ESFP descriptions clearly state that ESFPs strongly dislike dealing with absract concepts, logic, and reasoning so, if one makes a connection between those traits and intelligence, then ESFPs are definately unintelligent, at least, again, because of the absence of those traits. There are exceptions of ESFPs who do have those traits, but there are exceptions for everything else as well. There are ENFP scientists, INTJ psychologists, etc. Pointing them out is sort of a moot point.
Those ENFP scientists and INTJ psychologists were still ENFPs and INTJs, meaning that they posessed ENFP and INTJ traits. A logical, quiet, reasoning ESFP is not an ESFP at all, it's just not part of the description.
The problem comes when people like the INTJ above generalize people into groups based on their MBTI type. While MBTI is a valuable way to categorize people, he's treating it as if it is logical and has been proven scientifically, which it hasn't. Accepting or rejecting someone's answer on the basis of their type like you just did is a sign of irrationality, ignorance and of a weak, crippled mind.
There are a few possibilities towards why you're acting like this:
-An enflated sense of self-worth.
-Traumatic experiences with ESFPs.
Your posts are incredibly arrogant and cringy to read. I'm almost embarassed that people would associate you and me on the basis of the similarity between our types (One letter, I'm INTP, you're INTJ).