I know that. You know that. Their supporters probably even know that - but they won't care until it directly affects them.
If Restore make any headway, they'll just be absorbed before the General Election like all the fuckwit Tories that have defected. They might even rebrand it "Reform & Restore UK" or something daft like that. Either way, Farage will be PM in 2029. Rupert Lowe probably his deputy. It will be portrayed as them "putting their differences aside to save Britain", and the thickos will lap it up.