You said this:
Thanos power isn't a notch above THOR, it's a notch beyound ODIN.
Maybe you meant something else, but that's why I responded in the way I did.
And given that there's no BFR here (and that Kurse only went down due to an iron weakness), Kurse could conceivably give Thanos trouble--if Thanos fought like an idiot. However, I'd tend to agree with you that Thanos could son Kurse given his abilities. Then again, I think current Thor could do the same given his.