Mumbo Jumbo?

I must admit to not being wholly convinced by the UK PM claiming that decisions on whether to welcome US foods as part of a trading deal will be 'down to science, rather than mumbo jumbo' (https://www.theguardian.com/world/2020/feb/03/fears-about-us-food-standards-hysterical-says-boris-johnson). He, unfortunately, describes concerns about US food standards as being 'hysterical'. It's not just chlorinated chicken (although he did mention that) that is a problem. There are also issues about stocking densities of pigs maintained in factory units, the use of antibiotics as growth enhancers for many meats and the relatively unrestricted uses of insecticides in many areas. I accept that some GM crops could be used safely but profit seems to drive the whole of agriculture in the US.