Viney, I have to respectfully disagree with you on this one.
Ireland may export more thoroughbreds than the US, but that does not mean that US breeding (specifically with Mr. P) is undesirable or unpopular in the UK or Australia. In fact, quite the opposite is true.
For example, 24% of Australian mares were covered by a shuttle stallion in 2014, the majority of those shuttle stallions being North American bred.
Australia’s most popular stallion of 2014, Pierro, covered 220 mares. While an Australian-bred, has 4x5 inbreeding to Mr. P.
If you look at Australia’s top 25 stallions by fee, 6 of them are North American shuttle stallions, who have also made a serious impact on the stallion rankings in the country.
Ireland’s international phenom, Galileo, is from almost completely North American lineage for the first 3 generations. He’s out of a Mr. P granddaughter.
If you look at Ireland’s top 25 stallions by fee, 5 of them are North American bred.
England’s most expensive sire, Dubawi, is a Mr. P grandson. And again, if you look at their top sires, you’ll find plenty of American influence.
Considering the racing and breeding culture is drastically different in North America vs. UK vs. Australia, it’s amazing how much North American breeding has permeated the latter two regions. We may not be exporting a lot of stock to race overseas, (which makes sense because we have totally different breeding goals), but our North American bloodlines are inescapable!