In their mind, Project 2025 is the same as that Republic of Gilead from The Handmaid's Tale, and they're not going to stop until they drill that vision in everyone's head.
Of course, as far as I can tell, neither Gilead nor the real-life examples Margaret Atwood used (such as Iran) came to power by way of the ballot box. It was by violent revolution. So voting Democrat would not stop it anyway even if their fever dream were real.