Ground white pepper should do the trick if you have some. It’s 99% heat and 1% pepper flavor so it would be a good stand in for horseradish. My brain first went to ground ginger but it won’t really be a good sub for horseradish. Though it may taste good given the other ingredients. If you don’t have white pepper, I’d just up the cayenne. It doesn’t have that nostril burning quality to it but it’ll be spicy nonetheless
Duval is a very purple county that flips often. There is an active voter base here. Making generalizations about a city with a million people, let alone one of the most populous states in the country doesn’t help anything and only makes you look like a dumbass