Fortunately, growth hormones are outlawed in poultry in the US, as well. I may be incorrect, but I believe we have the likes of McDonalds, et al. to thank for the extraordinarily large breasts available through genetic modification.
I don't blame the EU for outlawing the import of US meat and poultry, the overseeing agencies have been so gutted in recent decades that inspectors can't do their jobs anymore. So now we are seeing many more reports of contamination, than we had in the past. That coupled with the indiscriminate use of antibiotics in this country.