You have to choose one flavor that your sense of taste will no longer be able to distinguish. Sweet, sour, bitter, salty, umami, spicy (not a taste per se, but we’re generous) : which one do you choose to lose?
I can choose umami without any hesitation; to go without this particular taste. I wouldn’t want to lose my other sense of taste like sweet, sour, bitter, salty and spicy.
To me it seems an acquired taste. It’s a pleasant savory taste, but mainly it is enhanced by the use of mono sodium glutamate (MSG) in cooking.
I have learnt this from the various cooking shows I used to watch. Many chefs advised against its usage, or to use it very sparingly.
When I first learned Chinese dishes I came to use MSG. Many times when I needed it, I would find the small dispenser empty. I found that even without it, the Chinese dishes turned out all right in taste.
My conclusion: I can live without umami.