You could use Bridgy Fed to convince folks on ATProto why ActivityPub is better and point them to Bounce so they can migrate without losing their network.

Disengaging is counter-productive to success. You don't win hearts by ignoring them.

0

If you have a fediverse account, you can quote this note from your own instance. Search https://mastodon.social/users/quillmatiq/statuses/115917663455605351 on your instance and quote it. (Note that quoting is not supported in Mastodon.)