I've encountered INTJs and ENTJs who are excessively convinced that they are "right" to the point of resorting to trolling, ignoring, or making fun of anyone who disagrees with them or presents different information.
INFPs can also have very rigid Fi values...in fact, any type can be rigid about something. I will stand my ground over certain issues, yes I will, depending on how the person approaches me. I can be totally open minded to certain things, but crack down on other issues.
I know SJs are who are more open-minded than you would think, too, being very open to new music, avant garde cinema, art, atheism, etc. ...depends on how they were raised, their level of intelligence, and how much information they've been exposed to.
Younger SJs are exposed to more information than older SJs were, therefore they have a broader range of Si impressions. You should keep this in mind when trying to seperate a 60 year old SJ who has never left their small WASP-y town in Montana, and a 28 year old SJ from a major U.S. city.