Me too, I much prefer the taste, but then I don’t like milk or a lot of cream either.I love the 0% fat fage greek yoghurt, I put a few berries, flaxseed and nuts in it. No nasties at all in it.
I never eat something for that reason alone but I try to repurpose or use it up in different ways that are yummy, I use yogurts in sauces & marinades anyway, I suppose me being a chef it’s easier for me to think outside the boxIMO (opinion of one!!!) if you eat something to save wasting it, you've still wasted it.
Ditch it and have something diabetic-friendly you really enjoy instead.
To save ever being given it again (because no doubt it was intended as a kind gesture) explain you had an allergic reaction to the starch. Not too far from the truth.