Well this is a bit of an elitist mindset. 

Honestly, there's room for both types of roleplaying to exist. For some people, they may indeed be more interested in collaborative writing and storytelling where they're focusing on making their rp the best story and creative writing they can be. And for some people, they may just be interested in the escapism that comes with roleplaying a character in a setting as if it was a tabletop game or rpg and having fun seeing what comes of the rp from that. 

[i]Both are perfectly fine.[/i] 

As Innue said, I can't see a single player as someone who deserves to be blamed for killing a roleplay through bad writing. If such an issue was to crop up where the majority of players or its GM felt that a player was not contributing enough to the rp in the way that they'd like, or in a way that is not what the GM intended, then it's up to the GM to resolve that issue (politely, of course). And that resolution comes through [b]communication and discussion[/b], where 'offending' players could then grow to understand the issues and learn what is neccessary for the GM's intentions in order to fit in and prosper within the rp, or if perhaps need be, amicably leave if there's that much of a clash of interest between players. If an rp was to fall and die because of a single player then the GM is simply not doing their job correctly at all.