The "TACO" trade only works as a pump and dump for insiders for as long as the counterparties allow it to. It does not make sense for the G7 to support the enrichment of the American president for long.
Why would anyone believe that this is the last time a president will use Tariff threats in the next 12 months? it was reasonable to negotiate last year based on the observation that trade imbalances had been a growing issue for the American people. Using trade as a lever for territorial concessions is almost certainly a hard red line.