I’d perhaps liken it more to jumping in the water to save someone who’s drowning.
You’re trying to help them and they should logically know that, but their instinct drives them to grab you everywhere and act like an anchor, drowning you both.
No matter how rational a person is, emotion and subconscious reactions can override all of that. That’s not really a failing as it’s the basis for empathy, but those same subconscious reactions can form a feedback loop that’s very difficult to escape.