They have always been there and always will. Just like the racist gammon element in the tory party.
The issue is whether or not the leadership can keep them quiet.
Blair was able to do so easily (more easily than he imagined, or even perhaps realized).
Now the likes of Abbott have declated...
Socialism is supposedly 'to each according to need' (and from each according to means).
Sunak conservatism appear to be 'to some people, according to age alone, regardless of need or means'. Bonkers.