The US has told the UK that it will not sign any trade agreement unless we accept lower standards of animal welfare and food production.
It is called a level playing field.
Remember that?
Personally I prefer the standards we in the U.K. have and am not willing to lower them. Most of our food we export goes to Europe, at the moment we are complying with their standards, and our farmers can export to them confident of a level playing field.
Why would we lower our standards in the hope of exporting a tiny minority of our produce to the USA ?