Funny thing is, and someone French please correct me if I'm wrong, a French person learning that expression from a book would be able to just pronounce it correctly. The problem outlined by OP is mainly with the English language
I can confirm. But most of us are enable to pronounce correctly the many words that come from English like hamburger, youtube or even New York. Imo the problem is a fairly classic one of lacking the oral reference frame for other languages.
They actually use the transliteration of that in Japanese with a similar meaning, but as you might expect the French sounds change a lot when they end up in Japanese pronunciation. Imagine my surprise when I found out that oh-dohburu wasn't actually a Japanese word originally.
Because croissant is an English word, a loan word yes, but still an English word. Are you going to say a Japanese person is wrong for pronouncing computer コンピューター?
Are culinary exports really "loan words"? Like the whole world calls a fajita a fajita (with various pronunciations), does that make it a loan word and part of the language or are we just using the original name for it? You see what I mean? I'm genuinely asking I have no idea.
I don't know for computer in Japanese but in french it's got it's own word (ordinateur), a good example of this would be "weekend" which is integral part of french vocabulary, that I would call a loan word, not sure about the food stuff though.
does that make it a loan word and part of the language or are we just using the original name for it?
I mean, computer like I wrote, is just computer in Japanese. Similarly Tsunami and Honcho are japanese words, loan words, they still refer to their original meaning