The internet is incomprehensibly vast. Yes, there might be a copy (or multiple copies) of a video you made in your youth on the internet. But as long as it isn't a) prominently available and b) attached to your name, you might be OK.
The situation we have today does allow you to address such a problem: Google can remove search results. It's not possible to do that on the blockchain.
The blockchain is vast and growing. Discovery is difficult.
Google prevents new searches or tries to but if you have the link you can visit without google. Same as the blockchain you would need to know where to look.
The situation we have today does allow you to address such a problem: Google can remove search results. It's not possible to do that on the blockchain.