I'm not saying this doesn't happen, but it's certainly not the norm. I have a beard, and pro-HK and pro-Tibetan opinions. I've visited various places in China

I'm not saying this doesn't happen, but it's certainly not the norm. I have a beard, and pro-HK and pro-Tibetan opinions. I've visited various places in China several times - never had any issues. The customs/immigration officials are friendly, just the same as they are everywhere (except the US!). The few interactions I've had with the police were also friendly, just the same as I'd expect everywhere (except the US!).