Without wishing to go over the ground again, I think I need to correct some misconceptions you have, Tewdric.
The party was explicitly racist, and merged with an openly fascist party. That's not in doubt. He was associated with the extremist Freedom Association and the Economic League, whose blacklisting of trade union members (particularly in construction) was creating waves still earlier this week. Homophobic? Clearly. Wikipedia, in a slightly coy version of his political beliefs, includes the following:
homosexuals are mainly responsible for the spreading of AIDS (the Garden of Eden is home of Adam and Eve, not Adam and Steve)
Perhaps not wildly out of line with some of his generation, but prejudiced nonetheless.
Misogynist? Certainly. Many times, he said that the BBC and society in general had been 'ruined' by the introduction of (takeover by, he described it as) women.
And, far from my confusing British and English, that was definitely Moore himself. Wikipedia again:
Proudly declaring himself to be English (rather than British) with "not the slightest wish to integrate with anybody", he stated his admiration for controversial former MP politician Enoch Powell.
I know people who have been adversely affected by the blacklisting. It was horrible.
As I've said, I appreciate that he did a lot to enthuse people about astronomy, but Kirst's comparison with Gary Glitter was apt.