Firstly, remember that "socialism" is a dirty word in US politics, but not in EU politics. The UK Labour party does claim[1] to be a socialist party. Their homepage[2] has a link to "affiliated socialist societies".
However in this case, the tories are just scaremongering.
[1] They're not really socialist anymore, since Tony Blair & New Labour back in the 90s at least.
However in this case, the tories are just scaremongering.
[1] They're not really socialist anymore, since Tony Blair & New Labour back in the 90s at least.