Bollocks. Not how electricity works. You put a power cable into swamp water and that electricity is flowing straight into the ground. Nobody who touches the water will get hurt, that’s literally how grounding works. Look into how the earth wire prevents shocks and you’ll see what I mean.

My dude, all you would have to do is float the end of the power cable…

Electricity doesn’t automatically flow to the ground, that’s a common misconception. It flows through all available paths, paths of lowest resistance just get higher amounts of the current. Humans are unfortunately a better conductor than swamp water, meaning they would get the majority of the current.

Again, I don’t think you know as much about electricity as you assume.