More often than not, truly moderate Democrats register as non-aligned (independent) or simply don't show up on election day to vote for some candidates. 

I know such people exist, because some of them are family members. One for instance is a very serious Christian who dislikes the anti-Christian slant of the democrat party and also has no patience with the pandemic debacle (Fauci and all of the nonsense associated with the so-called "vaccine"). She refused to get the shots and resented being threatened by 'Crats in many ways. 

Some registered Democrats are really non-aligned but retain their registration in order to vote in some closed election systems (where you cannot vote in a primary race unless you are registered as a Democrat. 

I often refer to 'Crats, but that is a term I personally reserve only for democrat party members who are anti-conservative- fanatics (radical revolutionary socialists, anarchists or anti-white racialists/racists). The term seeks to align the 'Crat with people who behave like rodents (vicious, cowardly, verminous, filthy, destructive, dangerous creatures which only show courage in packs, never as individuals).