Don't mind the couple thousand year age gap

https://lemmy.world/post/33139789

Or the first cousins thing. (1000 times removed)
It's only like 50 times removed since there were about 50 generations between Elros and Aragorn. That's really no closer genetically than two random strangers on earth. 50 generations is a long time to stir up the genetic mix.
Statistically it’s almost guaranteed to be less related than two random strangers.