Pish, you've only been here six months, that's still the honeymoon phase. Things won't always look so rosy, guaranteed.
I love the UK, have no plans to leave (and since my ILR came today, I don't have to!) but I still think you're mad to even consider giving up your citizenship after only six months in a new place. You know that the government is severely curtailing work-based visas, right? It's all very well to say that you want to live here forever, but the people who have the power actually to grant you the right to do so may have other plans. What happens if you renounce your US citizenship and then aren't able to renew your UK visa? Where will you go? Unless you have dual citizenship already there is absolutely no guarantee that you'll be able to remain in the UK for longer than a few years. Probably best to take it slow.
Oh, and I grew up in a 100+ year old house in Wisconsin, full of character and history. In the UK, I live in a flat purpose-built in the 60s. Is it possible that your experience of the US and the world in general is somewhat narrow and limited?
ETA: I see that you've put in an application for UK citizenship? Any news on how that's progressing?