I do not agree with your conclusion that your story demonstrates that "Democrats as a whole" don't care, especially given that the events took place before many

I do not agree with your conclusion that your story demonstrates that "Democrats as a whole" don't care, especially given that the events took place before many of the present Democrats were even politically active, elected Democrats. Regardless, your whataboutism doesn't matter here. Presently, the Democrats "as a whole" are united on election security, and the Republicans "as a whole" are united against it.