Qreed is falling prey to a common mistake: "I don't like that - it must be wrong!"
I'm pretty sure you weren't told by God which porn acts are good and which are bad. You're watching and seeing if they turn you on. There's no universal standard at work here, only if it gets you off or not.
Jumping from the starting point that you don't like pee scenes to the conclusion that there must be something wrong with the performers simply makes no sense. Neither you nor I are some sort of universally-accepted standard of good & bad.
This has nothing to do with porn but is a truism for life in the Real World: people don't orient their lives around what you like or don't like. They don’t care, and they're not going to like it when you start telling that you don't like white socks and so they shouldn't wear them.
When you get right down to it getting peed on is far less risky than many ordinary daily activities, and not even as smelly as some. It's perhaps the least risky part of a porn scene for the performers! There's really no objective reason to declare it "wrong".
Some girls are into playing the sub in dom/sub games. Others get a rush from a new experience they were brought up believing was kinky and "wrong". It's not hard to think of why some girls might actually like being peed on. The fact that neither you nor I know any girls like that doesn't mean they don't exist!
Your ideas of what harms a "career" may need some adjustment too. Prior to signing with Vivid as a contract star Brianna Banks was the quintessential Anal Queen, with lots of anals, A2Ms, anal cream pies, and yes, drinking Max Hardcore's pee.
PS. I could go on even further but I think I've made the point: Qreed is an extreme generalizer of what he likes, dislikes, and what is wrong with him. He assumes everyone ought to have the same dislikes and has the same problems and hang-ups as he does. When he says "they do this" and "they think that" about other guys, he's really just talking about himself.
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"If they can't picture me with a knife, forcing them to strip in an alley, I don't want any part of it. It's humiliating." - windsock