So the first email was from a Protonmail account, and the second one was spoofed and obviously had incorrect headers. Are you saying Youtube doesn't check for these when processing take-down requests?
The only way to get Google to care would be for content creators to start abandoning the platform on mass, but they don't really have anywhere to go (sorry Vimeo). Even then Google views content creators as a dime a dozen, so to get the numbers you need to make them notice would be exceptional.