Calm down, Umbran!What is this "MUST" you speak of?
If I am speaking to someone who expects me to be trying to communicate in French, it would be helpful to pronounce it as you say, definitely.
But, if everyone at the table knows it with that different pronunciation, they will understand what you mean just fine. And not a single horrible consequence for not using your preferred pronunciation will occur.
And ultimately, the point of language is to communicate, not to be proper.
