> Energy usage means security

Umm.. No.

"More energy = More security" is a slogan now being used to scam non-technical users to buy into the crypto ecosystem, but that does not make any sense if you are willing to think about for a second. Also very convenient that this slogan started getting popular when BTC started getting bad press for energy usage.

BTW how you reach consensus on a chain is different from how the accounts in the chain are secured. Just because all BTC nodes are burning up electricity all the time does not mean that your accounts are more/less secure.