The issue as many see with the Jedi’s approach is that they taught their students to essentially suppress any and all emotion that leads to the dark side. That’s unhealthy, and in the end we see that it leads to the dark side as well.
I don’t know if it’s “unhealthy”. It worked for 1000 years.
Try not to misconstrue Anakin’s mistakes as a result of the Jedi way. That wasn’t the case at all. Anakin was brought up the most un-Jedi way ever. He received late training. He had attachments to his mother. He disobeyed the Jedi code and got married. And he spent the majority of his Jedi life in battle. Of course he would turn to the Dark Side. He doesn’t even know what it means to be a Jedi.