@ReggieHere
Merging with Reform is not really surviving though. In effect the Tory party is already dong that – Reform is gradually peeling off its right-wing, the brexit split having already peeled off its left.
In France both of the old centre-right and centre-left duopoly parties have been almost eaten up by further right and left parties in national elections, though they survive in local politics. Macron’s ‘renaissance’ might in retrospect be seen as an attempt to save the centre by promising (like Starmer and perhaps Blair before him) to make it ‘new’ – but the status-quo is the status-quo however you talk it up, it’s really not working for large sections of the electorate, and Macron’s (and Starmer’s) historic levels of unpopularity are the result.