Answer: The Civil Rights Movement has been an inspiring and uncertain moment for Black Americans. The campaigns of civil rights leaders and numerous demonstrators of both colors have put laws to a stop to discrimination, Black voter intimidation, and unfair jobs and housing policies.
Another of the strongest accomplishments of the civil rights movement, the Civil Rights Act contributed to greater socioeconomic mobility for African-Americans throughout the country and prohibited racial segregation, ensuring greater access to services for women, ethnic minorities, African-Americans and low-income families. Economists also agree that the civil rights campaign has been an electoral boom.
Withholding something of value
I'm not sure Orwell does, or that it matters. You can read this story as a brutal kind of entertainment, and not consider the issue of trust at all. So, that is one option.
If you really want to examine what Orwell does to gain the reader's trust, start with the opening line, where Orwell says he was hated by a lot of people.