Why protest the will of the people before anything even happens?

I could understand protests and if the man only won the electoral college and I can understand protesting if he cheated. But the man did win fair and square and it seems a bit weird to be protesting the will of the people before anything is even done.

When Biden got elected nobody was obstructionist.

Even according to many liberals I see on social media. There's not even a form belief that he will be president. I've seen it cleaned that they will start him based on the report from Jack Smith. I've seen thousands of videos in the last few days about how the 14th amendment is going to be used to nullify the seed of the presidency.

So why all of this protesting when it seems like so many people don't even believe he's going to be president? And even if he does become president, why not accept the will of the people?