And you guys act like I’m the only one questioning the democrats not being democratic

Voters vote for delegates. The delegates vote for nominees. The delegates the voters elected will do what they were sent to do, pick a nominee.
Really isn't anything democratic required of a primary. The parties are private organizations, that via the rules set up by the Governments of each state, get ballot access for the candidate of their choosing.
Note that in a real fucking state, California, this isn't true. For every office internal to the state, e.g. everything but the Presidential primary, you put your name on the ballot, there is an election, and the top two vote getters run off in the general election.