Good for a laugh, but it's pretty easy to get rid of that stuff in particular. Anytime anyone reshares something, I go to the 3-dot menu and select "Hide all from xxxxx".
It makes most of the crap go away... except for the one "friend" who somehow manages to reshare everything under the sun. Somehow that guy keeps finding new sources for me to "Hide all" from. ¯\_(ツ)_/¯
It is by no means a solution, but the signal-to-noise ratio is increased.
You have to spend half an hour clicking through your list of "friends" (or fans or whatever these relationships are called these days) or write fifteen lines of javascript to click on the dom elements, but then that's it. Clean wall. Silence.
Unfortunately this didn't always solve the problem. For one thing, it would still show those pages when someone interacted with those posts on say, someone else's profile who shared it.
Even then, there are thousands of new junk pages created for that garbage every day. It's nearly impossible to keep up with it. Though I unfollowed or unfriended those who were the worst offenders, there would be others who took their place.