Then I link my talk to the cause of these fake products and suggest that these incidents are directly related to the corrupt nature of the Chinese Communist Party (CCP). The CCP only focuses on making money and does not care about people's lives and safety. I then mention two more things that made China lose face in the international community. One was the SARS epidemic in 2003, where the Communist regime covered up the facts, leading to an explosion of SARS around in the world. Due to this epidemic, the international community has strongly admonished the CCP.
Finally, I get to the main theme - asking whether they know about another dirty deed the CCP has done. If they say no, you can then tell them the truth about the "Tiananmen Square Self-immolation Incident" and tell them why Jiang Zemin's regime started the persecution of Falun Gong. Based on different situations, you can also introduce to them the current state of more than 25 million Chinese people having withdrawn from the CCP and let them know how they can withdraw.
This approach sounds natural, and it is easier for people to accept. It has a good effect, too.
This is my personal "truth-clarification" experience, for fellow practitioners' reference.