Sweet potatoes are gross and I'm sure dipping sweet potato fries in tartar sauce would be even worse.
I was mostly just replying to the word "fries", yeah dipping them in tartar would be disgusting.
I've always hated sweet potatoes / yams my entire life, until I ate some with a nice steak like a year ago, and ever since then I've been like, wow these things are fucking good. and these trader joe frites are super good. Anyway, I hope your day is going well my friend