I'm also from an insurance company, China Taiping Life Insurance, which is state-owned. Our company is very good, and we hope to get more customer lists. But if both parties are willing, it is usually because customers agree with us that they will recommend it to their relatives and friends. And every company has its advantages. If it is useless, it will have closed down long ago. As you said, this kind of salesman will not do it for a long time, let alone do it well, because no one is a fool and agents will not think of customers. Naturally, customers will not cooperate with him for a long time. Ignore him. If it doesn't work, tell him that you have the insurance you should have (preferably true), and even if you add insurance, you won't look for him in the future and let him give up completely.
I'm from Beijing, so don't worry about me selling you insurance.