"I've never seen an ad for formula."
I take it you don't read parenting/pregnancy and birth magazines or watch daytime tv then? Because they'e swarming with formula ads!
The leading formula companies are happy to state that 'breastfeeding is best' because it implies that breastfeeding is optimal, but that formula is the norm and is 'good enough' - and they know that for parents 'good enough' is fine - particularly during the early, tough days with a new baby. In other words - it works for them to set breastfeeding up as an 'ideal'.
Also as they're constantly implying their products are 'closer to breastmilk than ever', every time anyone talks about the benefits of breastmilk by implication they're doing a fluff job on formula as well.
And the 'supposed' health risks are not 'supposed' or insignificant. A bottlefed baby is five times as likely to be admitted to hospital with diarrheoa and vomiting as a fully breastfed baby. And that's controlling for social class. They're also massively more likely to be hospitalised with respitory illness. Now taking into account that respitory infections and d&v are two of the most common reasons for the hospitalisation of infants in this country - are you still prepared to say that the health risks of formula feeding are 'insignificant'?
Honestly - do you think the NHS would be putting precious money into promoting breastfeeding if there were no clear and proven health benefits for mothers and babies?
Seriously Nancy66 - do some reading!