Fully agree. As a non-native English speaker, I always thought English doesn't have "real" curse words, and the only actual (taboo) curse words I know are so-called "n-word" and similar.

It's hard for me to explain the difference, but (as an educated and relatively eloquent person) I would really hesitate (as in, physically struggle with my throat) to curse in my language aloud in a public place. Saying them among my friends or family would be seen as between mildly offensive and absolutely unacceptable. When hearing someone curse in public, I instinctively assume they're uneducated or intoxicated.

Meanwhile, i can freely swear in English among the same people (and online, and in most situations abroad). My mother, who I have never heard curse in my language, says "shit" like it was "oh darn". I see English swear words everywhere online. They really don't feel like a taboo to me.