Your fundamental argument seems to be "this will only affect bad actors" but I don't think the history of law in any part of the world justifies such optimism.

Or how about: I'm sure the advocates for civil asset forfeiture made similar arguments.

If you want to argue that prosecutors on your side of the pond are impervious to corruption, well, consider that you're including Spain, Italy, and Greece in that body politic (at least for now).