It's not a certain case for Rejoin until Rejoin exceeds the Stay Out+Don't Know vote, i.e. more than 50% polled. Otherwise you always need to assume those who are uncertain or disinterested could be swayed by lies and polemics.

RT @[email protected]

EU Referendum Voting Intention (Dec 2022):

Rejoin: 45.2% (-2.7)
Stay Out: 33.9% (-2.3)

Excluding Don't Knows:

Rejoin: 57.1% (+0.2)
Stay Out: 42.9% (-0.2)

http://electionmaps.uk/polling

🐦🔗: https://twitter.com/ElectionMapsUK/status/1609890292353699841