Both gold and Bitcoin are stores of value with high production costs, Bitcoin gets a lot of heat for its electricity consumption but I haven’t seen anyone ask the same for gold.

That's ridiculous. Gold is used for jewelry (arguably the same thing as money, okay), electronics, medicine, as a food additive, glass coloring, photography, satellite coating, radio telescopy, aircraft cockpit windows... try opening Wikipedia some time.

I can't quickly find what percentage of gold is purely mined for the purposes of being locked up in a vault somewhere as value store. If it is a sizable majority and it uses as much power as entire countries, then we should make this practice illegal as well.

But that is two big "if"s that you aren't answering (you're just asking questions, hinting at "see this other thing is also bad!", without adding anything to the conversation). And even if you would then it still doesn't mean that we should just carry on with the easier-to-stop-because-it-has-no-practical-uses method.

FYI I used to own Bitcoin. I also made money with it, and I bought products with it. Back in 2013. I know the technology deeply, as a tech nerd with too much time (back then) this was great and I learned many things about the tech as well as economics. But it has since become clear that the only purpose it can realistically fulfill is being an investment scheme, which you could also do without proof of work. Anyone who still uses this is either (and I mean this genuinely) blinded by the money they're hoping to make, waving away arguments using logical fallacies, or misinformed.