AdeptaSororitas said:
We were discussing what we find attractive in people and I said I like pale-skinned girls. His reply when confronted: "You shouldn't."
I think the most important question here is "Why?". As in "Why do you think I shouldn't?".
Here's an example with something more polar.
"I prefer smoking."
"You shouldn't."
"Why not?"
A:"It is known to increase the risk of cancer in you and those around you when you smoke, as well as respiratory illnesses."
B: "They smell bad."
C: "People who smoke are tossers."
D: "Because you just perpetuate the rule of corporations over the common man, extending their reach into both the community and the ruling powers."
E: "FISHMEN!"
One is a proven fact, and a possibly good reason (excluding in my opinion people who already know that and take steps to prevent at the least it affecting others.)
Two are opinions that only matter to you as much as their opinion matters.
Two are... well, not quite sane.
Point being, he is definitely not the most polite man, and he may be an asshole, but I wager a fair chance should be given him. I personally don't think this could be counted as racist, considering "pale skin" isn't limited to Caucasians, and in some cases, will exclude them.
Now, there are many multitudes where you could say regardless of the statement, they're being a dick.
"I prefer women with clearly defined nipples."
"I like big butts."
"I like a woman not too afraid of gaining weight to enjoy a delicious home-cooked meal." (my own opinion there).
"Firefighters really turn me on."
"I prefer women who don't have the body of 12 year old boys."
"I like smaller breasts."
"I like story-driven games."
"I like games that are fun."
"I like my job."
"I prefer short/tall women/men."
"I prefer people who don't put religion above friends and family."
and so on. Feel free to add your own.