No, you're cherry picking. What's the attribution for that chart? What year? Where have you read that it's largely to do with 'very poor and a lack of pre and post natal checks'? That's a very general analysis for someone who keeps banging on about evidence based medicine, not to mention unclearly worded. Do you mean poor people, as in people living in poverty, or do you mean poor medical care? It's unclear.
By the way, here's the definition for evidence based medicine, which you keep talking about but don't seem to understand. So far literally nothing you've posted has been evidence based medicine proving that routine checks, as are common in the US, don't lead to better outcomes.
Source: BMJ
Evidence-based medicine (EBMa) refers to the application of the best available research to clinical care, which requires the integration of evidence with clinical expertise and patient values. [1] [2] By best available research, we mean clinically relevant (i.e., patient oriented) research that:
Illuminates the accuracy and precision of diagnostic tests,
Highlights the importance of prognostic markers,
Establishes the efficacy and safety of therapeutic, rehabilitative, or preventive healthcare strategies, or
Seeks to understand the patient experience.
As to infant mortality, here's some data from the World Bank for 2020. Oh, look, US and UK not all that far apart. Also, you would do well to bear in mind that there are differences in the way countries count infant mortality, with the US more likely to count infants on the threshold of viability as live births than many other countries which are more likely to count them as miscarriages or stillbirths.
This chart is very interesting because if you scroll down it has data by income level
data.worldbank.org/indicator/SP.DYN.IMRT.IN?name_desc=true&locations=GB
With cancer the real scandal is how survival rates have hardly increased at all with the types of cancer the public are less interested in e.g. lung cancer.
That's a totally different and unrelated conversation, having to do, I believe with the fact that people tend to not be diagnosed while the cancer is still localised. Surely even you can see that there's a link to that being a cancer we don't routinely screen for and therefore increase the odds of catching in an early stage as opposed to breast and colon?