The reason the far right comes to these events is ultimately this:
There's what I call the Women's Country, which is the place all female people are 'assigned' at birth. In many places this country is the vassal state or colony of the Men's Country, though the exact amount of self-determination the Women's Country is allowed varies quite a bit.
But everywhere the far right wants it totally dominated and ruled by Men's Country, and this includes determining its constitution, determining how its citizenship is defined, deciding which history it is allowed to teach etc.
Now a new political movement (the gender identity ideology) has entered the fray, and it, too, wishes to colonise the Women's Country and to decide on its constitution, what determines citizenship in it, what language can be spoken inside it and so on.
There's a rebel movement within the Women's Country which wants to fight against these new colonists, and there's also a longer-standing opposition movement which fights against the old colonists, and these two movements overlap to a great extent. (There are also women who accept the idea of one or the other of the two invading forces as a good idea.)
When this rebel movement speaks against one or the other of the colonising movements, it's not a surprise that the other colonising movement pretends to be on the rebel side.
It is this, in the more fundamental sense, that causes the far right to turn up at KJKs events: They are not there because they agree with KJK, but because they strongly disagree with those who protest her.