How does Reagan’s testimony in paragraphs 19-20 contribute to the development of ideas in the text?

Reagan, in his testimony, detested that on the tactics of the fifth communist. He highlighted that they were dishonest, and as a citizen, he detested to see the country getting affected by fear and intimidation by some individuals. Therefore he didn’t compromise with anybody regarding the resentments and fear. He expressed he didn't feel it was inside the position or capacity of any single man or gathering of men inside the film business to have the option to decide precisely and decently who ought to be terminated and who ought not to be concluded.