Um...
the voters kinda did the nominating...
Edit: To clarify what I mean. People who voted in the Democratic primary didn't exactly vote for Biden, but voted for delegates that pledge to vote to Biden at the convention. Those delegates then can vote for who they think the people who voted for them would want when Biden dropped out. The delegates decided the voters would've wanted Harris since shes the VP, and that's probably what the voter would've want.
If you argue that Biden only won the 2024 nomination because of 2020. Well yea voters voted for him in 2020 too. 🤷♂️
People need to vote in primaries.