Brits don't elect their PM in their first place. That might be the reason. The structure of British democracy kept fascists away, as well as anything new, not the British people.

Sir Oswald Mosley was member of parliament before starting the BUF. He was the youngest member of the House of Commons when he started as Conservative. He eventually switched to Labour.

> The structure of British democracy kept fascists away, as well as anything new, not the British people.

There were fascists at all levels of British society, there occluding in parliament and in the royal family.

What was it that stopped them having more political success?

> The structure of British democracy kept fascists away, not British people.

That sentence was particularly hard to parse. It read like you were saying that the structure of British democracy kept fascists away, but did not keep the British people away (???).

I did manage to figure it out eventually though. I think you meant to write:

It was the structure of British democracy that kept fascists away, not the British people.