Is it big? I don't know how big it is exactly, but the west sure loves to demonize China, like they did the Soviet Union, like they do with Russia still now (even though Russia is not even remotely communist anymore). They tell lies about Tiananmen, about treatment of an ethnic minority they could find to use as a wedge (one that they themselves would be more prone to do in reality what they fakely claim China is doing - remember: every accusation is a confession), they say "at what cost?" about things that will improve the lives of regular people. They have a robust media machine of duplicitous lying horseshit. And if someone believes that and they haven't yet made the connection that imperialism and colonialism is a bigger monster than local capitalism, then they may implicitly still trust in western media portrayal of other countries. Breaking people out of this is, I think, more important than getting them to be communist. Not that you necessarily have to pick only one, but overall, imperialism is the bigger threat and so I'd say it's more important somebody understands that for what it is and opposes it but is a bit liberal otherwise than them being a western chauvinist who believes in fighting for the working class.