This is not the right way to compare BTC and Gold in terms of meaningful financial value.
The 'transportability' of the asset is really a secondary feature when talking of 'stores of wealth'.
Gold is obviously terribly difficult to move around, but that's fine, it's stored in large vaults and we make agreements as to 'who owns it'. Just as BTC implies a kind of 'contract' so does Gold ownership, they just take different forms.
The value of Gold and BTC will be a function of their perception as a credible long-term source of value. BTC will not achieve the status of Gold for a very long time, and it's unlikely it ever will. I wouldn't write it off entirely, but it's basically not a relevant instrument at this time.
As a currency BTC is probably dead for a variety of reasons, but it could come back in those terms, in which case, we'll view it differently.
But the world is not going to value BTC materially differently due to how it's 'transported'. We can trade Gold in mostly the same way.
"Bitcoin let’s you store $1T USD of dollars in your head, transport it anywhere in the world, and there’s not a single thing anyone else can do about it"
Yes, there is 'something' we can do about it, and that's to collectively not care a single bit about the magic number in said BTC holder's 'head'.