This Star Is a Bit Difficult to Understand

"Teacher Li, so many of the world's top shoes and clothes from abroad are looking for you to endorse them. Why do you refuse?" "I have been campaigning all my life to support domestic products. "Teacher Li, as an international first-class star, why do you do some small endorsements? Wouldn't that increase your popularity? " "I believe that endorsements are not to increase the popularity of artists, but to promote products! "