>... that they're thriving eating garbage in small town Alaska...
This is an "unbelievably lazy" and fundamental misunderstanding of how vast and unpopulated Alaska is. I mean you've even got someone else[1] in this thread with experience highlighting that your assertion is inaccurate.
>... and DDT'd to extinction in the lower 48...
You completely missed the part of the quote, in my comment, that very clearly states they were never extinct, and were upgraded from "endangered" to "threatened", and then removed from the list entirely in 2007.
>The point is that we killed all of the eagles in the lower 48 - a huge swath of territory.
It was never true that we killed all of them in the lower 48. Please go read the previously linked Wiki article.