Whatwhatwhat - the difference, IMO, is that KP makes a living out of people having an opinion of her. If I were to meet her IRL, or even on here, I would do as I have suggested, and either be polite, or say nothing.
Unfortunately, KP was at the height of her success around the time I was up all night with small babies. I ended up reading one of her books, and catching some of her reality shows. As such, the opinion I have of her, is one that she has herself given me. If you scrutinise her life story, things she says don't add up, she has sold out every aspect of her life for a quick buck, and has only stopped doing so in order to appear superior to PA. By 'her ilk' I'm merely describing people who conduct themselves in the same manner.
She is not a positive role model, she made money initially through her looks, but has since gone on to sell every aspect of her life, which at times has been incredibly dull, so she made stuff up. If KP were to read this, I doubt she'd care, because frankly, if she did, she probably wouldn't be where she is today. None the less, I find the life she puts out there, undesirable; and would not like any association with it. Which has absolutely nothing to do with any caste system. She could fit anywhere in a caste system and I would still find her vulgar. Equally I find K a t i e H o p k i n s vulgar, again, nothing to with caste systems. They both have these personas that they readily put out there, that I find distasteful. You're right, I don't know them, but what they let us see, I don't like.
For me, a particular low point from KP was when she publicly slated Jade Goody for courting the press while fighting cancer, when I knew I had seen her doing the exact same thing about discovering cancer in her finger.
While I accept I have been rude about KP, I think, like KH she makes a living out of getting a reaction, so would probably be more disappointed if people didn't have an opinion.
The OP however, is reading these responses. She is a normal person, without a team of publicists and pr people and probably therapists, who came on here to have a moan - and I sympathise. Why people felt the need to be rude to her is beyond me, when they could have just walked away. If KP had called her son James, I think the OP would have had more sympathy from some of the nasty posters. The point of the thread was not to discuss the name, it was to discuss the association.