But "Gor"= "Cor". If anyone objects to one they are inconsistant if they do not have the same objection to the other. I'd have little regard to for either - though I'd be in agreement with them in finding "God Blind Me" as such objectionable. As they say, be careful what you wish for, you might get it...

All kinds of innocuous phrases are adjusted versions of things that people might quite reasonably find offensive, but it's not, in my view, at all reasonable to object to them on that ground. That kind of linguistic development is very useful - lots of rhyming slang is like that. (And more often than not people don't even think of it as rhyming slang at all - "berk" from "Berkshire hunt", for example.)