Question, lets just say there are two lakes in your neighborhood, lake A carp are overloaded, killed off everything in there, 1 mile down the road, lake b, carp are in there and co-existing and not overloaded, are they still considered trash fish?
Depends on what the type the lakes, not all invasive species are bad. Common carps are seldom a problem in coolwater lakes but they're in low numbers, unlike in warmwater lakes.
Zebra mussels could be good thing for some lakes with algae bloom problem. It's also becoming important food items for rock bass, pumpkinseed, redhorses, yellow perch, drums, round gobies and carps while it also offers shelters for sculpins which leads to an increase in sculpin populations (inland waters, not Great Lakes). But zebra mussels did caused high mortality in fry of smallmouth bass by clearing the water clarity and from predation by sculpins. That's why many smallmouth bass are trophy sized in zebra mussels infected waters with very few young smallmouth bass. We also have problem with northern pikes and largemouth bass getting in trout lakes via illegal stocking and wiping out native trout pretty fast.
Goldfish can be problematic in metro lakes in this state, but they're also important forage fish for muskellunge and tiger muskies.
Brown trout can be good thing in few streams to control stunted Brook trout populations as well as the introduced green sunfish (these dang things are everywhere) and rock bass. These rock bass and green sunfish never get big in trout lakes and trout streams too.
My biggest beef with other anglers are how they treating sturgeons, northern pikes and muskellunges like carp. I find it to be very strange that in recent years many anglers took a dislike on sturgeons and northern pikes. I found a pile full of dead northerns last month. Perfect eating sized ones, yet discard them on ice like trash.
These "facts" you talking about isn't a fact it's just an opinion and a personal opinion of yours. You seems you trying to push your personal beliefs down in my throat constantly about how great the carps are. In my opinion they're just a trashfish to me. More power to ya if you like a common carp.
Goldfish is already established in the metro lakes by idiots, never said they were promoted as forage fish they were just being main forage fish for metro predatory fishes just like round gobies being main forage fish for many predatory fishes. Why? Because they're dirty common. No one is promoting goldfish as forage fish because that would be idiotic.
As for other fish, I treat them like other fish. But if I caught a carp it's gonna be dog food or fertilizer as I will never put them back in the water. But don't let my personal choices to be butthurt for you, Jason.
You like carps. I don't like carps.