Most states the UC rules and practices are pretty stacked against the employer-because anything but clearly proven intentional malfeasance will be granted UC (despite the law usually saying those fired for cause don't get UC). I once had a case where a professional truck driver poured oil in the radiator (or antifreeze in the crankcase, I don't remember) despite clearly labelled caps, causing substantial damage to that truck's engine, including a tow, getting and reloading a replacement truck, etc). The very next (rainy) day he drove a truck through a 2-3 foot deep puddle near a loading dock on his regular route, wrecking another engine at which point he was fired. I lost the UC hearing.
It may be different in deep red states where the government is owned and operated by businesses, but my usual advice to employers is unless a gun or knife is involved, clear theft, a punch, etc., don't waste your time and money contesting UC claims.