I'm thinking things like flagpoles in the yard.
Like you waste however much money and resources to keep your non-native grass around and they drop in a 60 foot pole into it to be able to fly an American flag and flag for whatever shitty college you went to.
What other things are there?
I think even more distant family can snitch on you with their dna right?
Yeah I was just giving examples but I’m pretty sure you’re right, I think they can link people who are much more removed than that