A bunch of easily psyopped morons aren't a large enough majority of the general consumer populace to be worth considering. For every 1 of someone like you, there's 50 people who blindly grab the cheapest product off the shelf that gets the job done.
The presence of a few nationalistic morons doesn't wholly negate the goals mentioned by GP, and in fact, may be more important than ever.
1) Stopped buying USA wine totally
2) Canceled our plans for vacations in the USA
3) Stopped buying USA orange (or any citrus) juice
4) Carefully check the provenance of any fruit or vegetable in the supermarket and actively avoid anything that comes from the USA
... and the list goes on.
I am not alone!
How do those immediate and tangible consequences serve the interests of the USA producers and companies affected, exactly?