I have a theory brewing so bear with me.
If indeed this first point is fiction, not fact, then this may be pointless.

I understand that fire ants (and ants in general) do NOT like sugar (plain old white table sugar).
Basically white sugar on a fire ant mound and they move on?
Being as I am from Texas, fire ants are a determined tenANT in my yard and my compost pile! They really are determined little critters. I'll admit that I do admire their survival skills. I should know as many times as I've tried to wipe them out! LOL

Anyways, back to my point.
Would adding refined sugar to my compost help keep the fire ants out of there?

Also I assume it would heat things up a notch?
As long as it doesn't hurt my worms I'll give it a go.

Thank you!

Fire ants are not sugar ants and will avoid sugar. Real sugar ants will eat refined table sugar until it's gone.

If you have ants in your compost pile, they are probably beneficial - even if they are fire ants. They are decomposing something nearby or they would not be there.

For years I've had ants that look every bit like fire ants in my compost. They even have the same menacing swarming habit, but when I plunged my arm into them last year, they ignored me. So my ants are not fire ants. Are you sure your are, not that I think it matters.