The thing is, people who are like "we just have to vote!" all have two things in common: 1) they have no fucking clue what Biden actually did and 2) they honestly think that if we elect Democrats and then protest them, they won't charge us with terrorism and render us to a Black Site. Both are expressions of being Sweet Summer Children.
Sure you should vote. Honestly, all the harm is baked in because you don't have any real choices outside of local elections, so the moral injury is slight.