I'm no lawyer, but it seems to me that what's needed are some class action lawsuits against the media companies who are doing this. From what I understand, if you deliberately issue a fraudulent DMCA complaint you can be held liable for interfering in the IP owner's business relationship with the website, and for costing them advertising revenue. The problem is that the media companies can claim that they're acting on good faith because their bots are designed to only issue legitimate take-down notices...but are there limits to how far that argument can carry them?
At this point, bogus take-downs have reached a level where they're widely interfering with the ability of content creators to use YouTube without pouring days of their time into defending DMCA complaints. If you can show that the media companies know that they're issuing an unreasonable proportion of false copyright claims as part of their routine activities, would it not follow that they can he held liable for damages?
Some of the companies that troll YouTube are not even being negligent--they know that most people won't have the time/ability to defend a DMCA complaint, and they make their money by inserting their ads into other people's content. If the big media companies can get away on plausible deniability, it seems that there are, at least, smaller fish to fry.