I get it's a joke, but this won't be advertised to consumers. The current US administration (and previous ones to a lesser extent) oppose food labeling regulations. It's one of the main "non-tariff trade barriers" they complain about to the EU.
What’s the idea behind it? Just anti consumer or is there a reasonable angle?
The EU already refuses to import American chicken (over sanitary practices) and has limitations on beef (over hormones).
They'll ban American pork entirely if we can't guarantee that the GMO pork are excluded.