Culture Wars have destroyed Conservatives everywhere. They used to be able to adopt reasonable, evidence-based positions on some issues.
Now if something is associated with the Left they’ll slice off their entire face rather than go near it.
Allister Heath is not really a conservative in any meaningful sense of the word, he's been a radical far right satirical comedian who isn't self aware enough to understand what he is for years.
He is completely without sanity.
Nothing is destroyed. Conservatives (and liberals) always acted in accordance within capitalist reasoning.
They always zave and will always push aside what had to be pushed aside for the growth of capital.
They've always been the loons, but now they feel free to express themselves in public so all can hear and see the nonsense. They no longer bother to couch their ideas in serious sounding words. George Wallace would be a mainstream conservative today.