The answer should be pretty simple: make a parallel more stringent deal inviting signatories to some open market for goods to European and American markets, Put in some control measures so that everyone stands by their word and state preconditions to join for countries who owe fossil fuel extraction and steel or cement production over 30% of their gross national income.
Well, I guess the US has to choose since they refused to manage all three in one swoop: Help protect your biggest economic partner from Russian threats, manage your second biggest partner out of south-east asia colonialism or manage your border (and in the process make meat and veg more expensive)…
Decisions decisions decisions