However much one dislikes the Conservative Party, nobody is seriously suggesting - as some commentators here appear to misunderstand - that Cameron, Hague et al are themselves fascists.
What has happened is that the Tory leadership has made a terrible mistake which many among the Tories already realise. In his attempt to satisfy Tory Euro-sceptics, Cameron took his delegation of Conservative MEPs in Brussels out of the centre-right EPP group and instead formed a parliamentary fraction with right-wing parties which include fascist MEPs from Eastern Europe.
It is no small matter that the MEPs of the party which will probably form the next British government are of their own free will part of a political fraction in Brussels which contains fascists. This point needs to be made again and again until the Tories (or the fascists) leave that grouping.
If Cameron wants to land on planet Earth with regard to the EU he needs to do two things:
First, leave the so-called Conservative and Reform fraction in the European Parliament which contains fascists.
Second, recognise that the EU is a reality (and largely a beneficial one) and work out how best to purse British interests inside that body.