I agree. While it can be difficult to fight against deepfakes, we need to use every technology we have to try and combat it. Having a reputation system like hive, or a verified account system like in social media can also help.
I just watched a video on YT tackling reverse deepfakes; where they use popular content creator pictures and videos, and replace it with AI generated faces to make it appear like the content is their own, and avoid copyright strikes. Things are constantly changing and people are finding more ways to do illegal things. We need to improve the tools battling them too.