If you use a public email provider, mark the emails as spam.
Set an email filter to delete all their emails. And if you're mad, also add a forward to some of their addresses.
Email every single email address you can find on their website that they should remove your email address from their system. I live in the EU so I always mention GDPR, which they are required to follow if they wish to do any business with people from the EU. There's similar laws in other countries.
If the senders email address is not a "noreply" email address, reply with "UNSUBSCRIBE".
If the website uses an email service such as mailchimp, mark them as "I never signed up for this". If a lot of people do this they might get in trouble.
To add to the comments already posted; Some countries also have programs that combat invasive plant species. I once worked in such a program which removed invasive American trees in Europe.
It's absolutely awful and if I get clickbaited into one such videos I let it play for a few seconds before clicking it away. I hope this makes their bounce rate drop.
They steal content and provide nothing of value besides their fragile and fake personalities that a few people might like because they're lonely.
The download ones?