Here you are confusing "total amount of electricity Bitcoin used trough history" and "amount of electricity Bitcoin miners are currently using".
The second is proportional to the current Bitcoin price, the first one, who cares.
The second is proportional to the current Bitcoin price, the first one, who cares.
That would be the case if price doesn't vary much over time. But marketcap is current supply * current price, while the large majority of current supply was mined when bitcoin was WAY cheaper and thus much less electricity was spent on it.