It’s possible your vote might not ultimately be the deciding vote and that your preferred candidates win easily. But many solidly one colored states have flipped, and the first time it happens it’s always close. Why risk it? Most places have a means by which to vote which is easy and accessible - vote by mail and early voting are an option in most places, especially blue states. Generally early voting takes a matter of minutes. Your vote is your voice in politics, don’t you want it to be heard?

I live in a pretty red state and typically vote very blue. I vote every single election I am able to, because local elections matter too, and when it comes to president, my voice is going to be counted, even if my state sends their electoral votes elsewhere.