Fusion Power's Newest Problem Is People Secretly Making Nukes

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5. Burning hydrogen has no net energy gain.

You must produce from other sources - typically hydrocarbons - and that takes energy. It is essentially a battery, not a fuel.

The radioactive waste from fusion is from the structural materials of the reactor itself, having been bombarded by neutrons. This does need to be disposed of when the reactor is decommissioned, however it is relatively short lived and does not require the sort of handling and long term storage that is needed for fission by products.