" they are able to violate human rights much more easily than agencies that have more openness and less political valence."
I asked you to show evidence for this statement ""Historically, the agency has been one of the most corrupt from the beginning". Not if it's easier for them to violate human rights.
"Most USG agencies did not have programs similar to COINTELPRO."
COINTELPRO is a secret surveillance program. There's been similar secret surveillance programs from the CIA and NSA, many discussed here regarding internet surveillance. [1][2]
You also claim the FBI is the US secret police, similar to other countries secret police. What makes them like other countries secret police? What makes them more secret than the NSA or CIA?
"since secret police suppress internal dissent with tactics veiled in secrecy,"
How is the FBI suppressing internal dissent?
[1] https://www.brennancenter.org/our-work/analysis-opinion/how-...
[2]https://www.eff.org/nsa-spying