If you believe the election was fraudulent or unfair, then there is nothing "undemocratic" about not recognizing the results as legitimate (like what Stacey Abrams did after losing in 2018, lol.) This isn't a question of values, it's a matter of (mis)information.
Stacey Abrams never demanded that the election be certified for her even though she didn't actually win. Her supporters didn't threaten to murder the Secretary of State because they didn't like the results. There is a difference between calling out the fact that your opponent purged the voter rolls in his official capacity and demanding that the courts hand you the election based on non-existent fraud.