The Warlock debate

There is a standing debate on whether or not that warlocks count as overtly evil. Most paladins seem to think so as warlocks count as extensions of their patrons will, and so most of the time these warlocks themselves are counted as evil. Of course each guild has a different take on it.
The Hellscorned will not allow Warlocks unless they are Celestial, Seeker or Archfey. The S.A.G. allows all manner of warlocks The Shields forbid Fiend, Undead and Hexblade. The Sapphire eyes only forbid warlocks on a person to person basis.
The question is a long standing one. "Are warlocks there own person or are they an extension of their patron" and "If the Patron is evil but the person is good and vice versa, can they be trusted to make moral decisions."