Did my 30 year old cousin over reacted because I give her 3 year old a cup cake?

Okay I get it deabetes runs in our family. I bake cup cakes with frosting on top. I decided to give one to my cousin's 3 year old. My 30 year old cousin got all Karen. And said that's to much sugar for my child. Supposed my 30 year old cousin she doesn't want her daughter to get into the habit of sweet sugar stuff to prevent her 3 year old to develop deabetes. She gives her 3 year old vegetables , fruited , meat everything except sugar. When do older parents exaggerating about their child eating candy 🍭🍬 and sweets?
Did my 30 year old cousin over reacted because I give her 3 year old a cup cake?
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