^^^Pffftttttttt - don't think ENTJ's have time for such nonsense
Yes I've seen those introvert = loser ads.
They're usually around the personality descriptions or tests section of a typology website.
They are attempting to appeal to shy, insecure individuals who think introversion = inherent shyness or poor social skills.
If you are a regular user of MBTI descriptions and structures, you'd understand introversion is only an orientation to the world and each peson has various forms of introverted and extroverted orientations
Fellow introverts and extroverts who are more inclined to self-monitoring:
We cannot be bothered with such tripe. If others are afraid of our general disposition or that we represent something that they fear, so be it. This is only at their expense.
What we can do is to help such people better understand themselves without the fear of being alone, or any other irrational fear that they may have concerning us and all manner of symbols of their insecurities.