"Marxism" was the root cause of the Chernobyl catastrophe. A Communist party political appointee in charge of the plant foolishly and arrogantly ordered the operator to initiate a catastrophic process, despite strong protests from the technicians who actually knew how the plant operated. Also, the plant was designed with minimal safety safeguards, in a regime where human safety was low on the priority list. Marxism at work.
Compare Fukushima. A natural disaster and a "Perfect Storm" of improbable events conspired to create a catastrophe in which not a single person died due to exposure to nuclear radiation. One guy died of a heart attack.
Compare TMI: Still regarded as a "disaster" despite not a single person even getting sick, let alone being killed.