Well, this was the case decades ago, too, just few people paid attention. The US made sure their interests are always put before Polish interests, and these were regularly reported by the US embassy in Warsaw. See e.g.:[0]
"Rozanski went on
to explain that Polish food products are viewed in the EU as
healthy and natural, and are competitive in their current
state. Use of GM seeds could threaten this perception, and
thus Poland's place in the market. When Spirnak and Embassy
Agricultural Counselor noted that such an approach would be
of great concern to the U.S. and would be contrary to EU as
well as WTO commitments, Rozanski backed off and said that
Poland must comply with EU and international commitments
(Note: Rozanski softened this message further at a subsequent
meeting that Agricultural Counselor attended)."
The bright point is, since it's more or less clear that the US basically stopped caring much about Europe militarily, the "great concern to the U.S." cited above is not that relevant. Trump basically destroyed most of the soft power the USA had over Europe.
"Rozanski went on to explain that Polish food products are viewed in the EU as healthy and natural, and are competitive in their current state. Use of GM seeds could threaten this perception, and thus Poland's place in the market. When Spirnak and Embassy Agricultural Counselor noted that such an approach would be of great concern to the U.S. and would be contrary to EU as well as WTO commitments, Rozanski backed off and said that Poland must comply with EU and international commitments (Note: Rozanski softened this message further at a subsequent meeting that Agricultural Counselor attended)."
[0] https://wikileaks.org/plusd/cables/06WARSAW107_a.html
The bright point is, since it's more or less clear that the US basically stopped caring much about Europe militarily, the "great concern to the U.S." cited above is not that relevant. Trump basically destroyed most of the soft power the USA had over Europe.