I think he was going for the "it's a snowflake health safety gone mad" issue - with a side order of, "it never did me any harm," argument. Then he spotted that it really didn't sound that great, even by their standards.I have no idea what point he's even trying to haphazardly make here.
"Swimming in shit has always been a thing but of course it's bad" It's like a shit version of gaslighting? I have no clue what he's saying.
So he switched to a, "what the eye doesn't see, the heart doesn't grieve over," stance. I'm pretty sure that it's all the EU's fault for telling the water companies to monitor and report sewage contamination of bathing and drinking water. One of those petty regulations that Brexit was supposed to free us from, like not putting arsenic in baby food