Also they are often prescribed as a life-long solution, instead of a temporary stop-gap to get through some bad state of mind while, as you said, "tackling the root cause". At some point they will potentially stop working which requires switching meds and often the next one won't work as well, plus, leaving the user stuck with withdrawal symptoms for unspecified amount of time (potentially years) and anti-depressant pushers don't usually warn about this, or even acknowledge it when confronted with "since stopping I have symptom x, y, z".

Source: multiple friends, family and forums (while researching how to help friends & family get off of various SSRIs).