Well, yes, Ti can be very immovable when it wants to stand up for something. There are times where it's good and times where it's bad. Recently, I had a situation where a friend needed my help in her business class - writing a business plan, market evaluation, etc. Very detailed, time consuming stuff. I said, "I have no problem helping you, but DO NOT throw it on my lap at the last minute and expect a miracle." Didn't hear anything for 3 weeks. Suddenly got an e-mail saying, "OMG...please help. This is due tomorrow and I need help. Yes, I waited till the last minute. Sorry. Please help. Documents attached." Ti: Delete e-mail. I don't have time for the nonsense. Sometimes people just have to learn the hard way.
I also have a family member who is racist and who thinks that white people are inherently "better" (whatever that means) than people of all other races. It's pure ignorance, it's ridiculous, and I refuse to tolerate it. So, at family gatherings, when this person begins to rant, I shut it down and I shut it down hard. There have been tears before because of my Ti comments. I absolutely refuse to budge in this situation. I have friend, dear friends, of various races. People are people and we all have value. So, go ahead and spout your ignorance when I'm not in your presence, but don't invite me to a gathering and then make it a point to spout off. I will take an extremely firm stance and you won't like it.
So, it just depends on what the topic is and how the other person is using it. I have another ENFP friend (not picking on them), but she prides herself on being "non-judgmental". She's an extreme liberal and accepts everyone. Fine. That's great. But, another friend of ours said that his grandpa carries a gun when he goes into the city. The ENFP immediately judged him. Rolled her eyes and went "Who would carry a gun? What a hick!" So, OK, you hate judgmental people, but you just judged. Go figure. Ti has a way of seeing this stuff all over the place - inconsistencies, hypocrisy, etc. And it's infuriating.