If you're in a swing state. You vote for Biden.
If you're not in a swing state, you vote third party.
Don't not vote, by voting you make your intention and commitment very clear. Even if your third party candidate never has a chance, mainstream politicians may notice the interest in that third party candidates platform and adopt some of his/her policies.
Participate in your state's primary elections. There's a lot more diversity of policies there and you can make your voice heard there as well.
Participate in your city and state elections, the amount of money effort and attention placed on federal elections (especially presidential) is completely outsized compared to local elections. Which means the amount of influence that you can have as an individual relative to amount of power the offices that you have influence over is huge compared to the same calculation at the federal level.
Many politicians start at the state and municipal level. So your influence there can be very helpful. Also if Trumps gets some success at creating a authoritarian dystopia at the federal level, it can be mitigated at the state and municipal level. Just like how each state can make sure to protect the right of abortion despite the supreme court flip on the subject.
I look at it as the AI we build is humanity's child. It will outgrow us. And we will age out and die.
On a cosmic scale, an AI can operate in ways humans never could.
Even if you use the augmented humans path, eventually, all the human will be augmented out of existence until only the AI is left.