The threat to the Miracle

Alma assumes Mirabel is the cause of the magic breaking down because all of the times she sees the damage coincide with Mirabel's involvement, but in reality, Mirabel's issues are actually a symptom of the real problem; the impossible standards Alma imposed on the family, which didn't actually fit them as they grew, leaving many of them in pain. Mirabel is just the most obvious in her inability to fit Alma's ideals and thus is an easy target for scapegoating. Why does the house react so strongly to Mirabel in particular, then? She says it pretty straight-forwardly herself right before the first cracks appear, she "can't keep down the unspoken invisible pain." Alma treats the inability to cope and conform as the problem and a threat to the Miracle, when the real problem is the fact that the surviving Madrigal family, Alma's real Miracle, is in pain.

Example of:
False Cause