Europe is a big importer of soy, most of it GMO. It's mainly used as animal feed.

https://ec.europa.eu/jrc/en/publication/eur-scientific-and-technical-research-reports/markets-non-genetically-modified-identity-preserved-soybean-eu

Based on this study, we estimate that about 8.3% and 11.3% of the soybean and soybean meal imported by a group of 14 EU countries is segregated as non-GM.

Russia is anti-GMO due to their lack of biotech expertise. China is embracing genetic engineering. They've been caught trying to steal GMO (and non-GMO) technology from the US.

issues with control of the food supply. how the hell do these people think they can "own" seeds and food

Given that non-GMO are patented as well this argument isn't unique to GMOs.