This election is going to be so weird that I’m not sure the concept of “safe states” applies.
A county clerk could decide not to certify, and your safe state’s total could be excluding a whole urban area so all of a sudden it’s a swing state until after a court battle. The Republican state legislature could just decide to throw the whole thing out. Mike Johnson could decide he doesn’t like the results and he’s going to call the election for Trump. It could be anything.
Personally, I’m thinking a lot more in terms of “What if they steal the election, what am I personally going to do about it,” and not in terms of “Hey how can I find a stranger on the internet and make a demonstrative gesture.” If you want to protest against the war in Gaza or the US’s support for it, that sounds absolutely great. But anything other than Trump losing this election is going to be a true catastrophe for the Palestinians, and the chance that your non-vote for Harris in a “safe” state is going to be interpreted by the establishment as a protest against their Gaza policy and produce any good effect is basically 0, I think. Just go to a protest, or donate or volunteer for a pro-Palestinian congressperson, or something along those lines, would be my thinking on it.