At least in the US, fish in general is somewhat polarizing and, probably especially, strong tasting fish like anchovies, fish sauce, etc. Just not something probably the majority of people grew up with.
Its midwesterners. There’s a fish tradition in most other parts of the country.
Worcestershire sauce is a fish sauce that's used all over American cuisine, especially BBQ.
It isn’t just familiarity. Some people experience some fish sauces as having vividly foul flavor. This includes people who routinely eat anchovies, cured fish, etc.
It is clearly an issue of sensitivity.