I despise Cameron, but not on the same level as Thatcher. Not even close. She was a special case. I wouldn't compare her to Hitler or Stalin in terms of evilness, that would be silly. But in terms of being glad that an evil person who I detest is no longer with us, then sure, why not.
She may have been out of office, but the legacy of her misrule is still with us. You can't just sweep it under the carpet and say forgive and forget.
Well no one did more to pursue class politics in this country than Thatcher. She wasn't interested in 'one nation' conservatism. Just government by the rich, for the rich.
I haven't seen anyone say that they'd have liked to kill her. personally i think I could have done it without hesitation or remorse, but you can't say that for certain until you are in that situation. It's completely hypothetical.
I'd be cheering a lot louder if she'd been hanged, believe me.