That’s nonsense. Bitcoin is as good a store of value as gold due to one unique feature: scarcity. Actually, it’s even less power consuming than the gold industry and is much more transparent. I wouldn’t really advise bitcoin for anything else, like day to day transactions, although I and many of my friends have used bitcoin to transact on dark markets and it works. The only argument I’ve heard about gold being better…
I could take an A4 sheet and draw a triangle on it. It's scarce (there's only one A4 sheet with that precise badly-drawn triangle), but since nobody wants it, it's worth as much as the paper it was drawn on.
The same happens with both Bitcoin and gold. Since they are scarce, as long as there's enough demand their price will increase. However, there's a difference: gold has industrial uses for which there are no replacements with the same characteristics, and this provides a baseline level of demand. For Bitcoin, that is not the case; for any use case, there is (or can be created) another cryptocurrency which can be used instead of Bitcoin. This means there's no floor for the Bitcoin demand; for instance, if everyone decides that Ethereum's proof-of-stake is the best thing since sliced bread, the demand for Bitcoin can almost completely evaporate, and its price will go to zero. (There's a small intrinsic demand for Bitcoin as a collectible, since it was the first proof-of-work cryptocurrency, but that by itself is not enough to sustain its price.)