Both far left and far right are characterised by authoritarian dogma forcing a polarised view on all.
UK political success has largely been found in the centre ground - probably why in terms of likely outcomes there is little to choose between a Labour and Tory government.
Painting those slightly to the right of centre "far right" is to align them with the worst excesses of Hitler, Franco, Mussolini. Those slightly left of centre do not warrant association with the extremes of Stalin, Mao, or even those whose names are often used as insults - Marx. Lenin, Trotsky.
That Farage has garnered such support (not mine!) is a reflection of:
- his presentational skills which far exceed those of Starmer and Sunak
- his willingness to risk opprobrium by being explicit and direct
- the superficial attractiveness of many policies to an often ill educated public
- the utterly uninspiring "sunlit uplands" that the political establishment promote
As a political threat he will not be neutered by rational argument on normal political lines - that is what the Remainers did with Brexit facing a similarly talented and equally flawed Boris. That his sums don't add up, and policies questionable will not deter his supporters.
To use a footballing expression - the best approach may be to "play the man, not the ball".