Heidi ~ honestly, I wouldn't worry about the sugar, same as I don't worry about the tea because of the action of the yeast and bacteria...they eat the sugar! All the sugar is is food for the critters. Then you are just left with the creamy, fizzy, healthy fermentation and health benefits of the ferment :)

I have seen the question before, though...this excellent website says the following:

"YES! You can use honey to brew Kombucha. However, you may want to avoid raw honey as it does contain its own colony of bacteria that could adversely affect the culture. To use honey, substitute 7/8 of a cup of honey for every 1 cup of sugar."

https://www.kombuchakamp.com/what-is-kombucha/kombucha-mushroom-tea-brewing-safety-tips/types-of-sugar-to-use-for-brewing-kombucha