Strange tittle I know. However this is one thing I have read about. Both IEI and SEI have 4D Fi and both types seem prone to struggle with depression, self esteem, angst etc.
A lot of this is also prone due to them both having Pi functions as well. Aka, they’re hella subjective and easily get pulled into their own pool of unregulated 4D Fi with a crap Te polr that can’t ground them. I read about this a little while back and some heavy angst just hit me in the gut just now. Just want to discuss this as I don’t see it hit the same as ESI’s and EII’s.