I get the point, but that's not the fairest representation of the situation. The trend in electricity input has largely been driven by speculation. Once some long term market equilibrium is reached (perhaps years out), the pendulum should swing the other direction. And then FUD will probably be more focused on the down-trending hash rate than electricity input.
they will more then likely change bitcoin to use less electricity when it becomes a huge issue
That seems unlikely. I'll be curious to see where we are in a few years, in comparison to the gold minting and banking industries. Both require huge amounts of energy.
it's already an issue. only few chinesse miners can afford to mine.
That problem has less to do with electricity costs than ASIC production costs. There are many geographic locations that are comparable in electricity costs to China, and some percentage of people always have subsidization/free electricity.
