hi,
using a boat in the "end", the dragon can not push us
https://www.youtube.com/watch?v=r4p1XuBloM8&feature=youtu.be
(sorry for my bad english but I'm french)
Linked issues
duplicates 1
Comments 3
When you are riding a boat/minecart, you are "stuck" in it until you press Shift to get out. This is intentional. Mobs cannot eject you from boats/minecarts. The problem lies from the ender dragon not affecting the boat itself. So I would say it's probably a duplicate of MC-9381.
The video is private.
Relates to MC-9381