I know it’s frustrating, but a lot of people just don’t understand how things like this work. For example, you probably know what a web scraper is and maybe how to use it. That means it’s trivial to download and store all the public data you care to identify, fetch, and archive. Lots of people don’t have the first clue that you could do this let alone know how.
Another example is that many people still think you can “take down a video”. In reality, if a video has gone viral, it’s probably archived on hundreds of servers, so if YouTube takes it down it might make it harder for the general public to access in the short term but it’s certainly not gone.