I'm Australian and cannot legally vote in US elections. So instead of voting against Trump, I campaigned against him online by telling people to vote for Harris. And campaigned for more refugee visas here in Australia.
Anarchists are not necessarily against all involvement in electoral politics. Some advocate voting when the possible outcome of an election could be disastrous (for example, if a fascist or quasi-fascist party looks likely to win the election).
What your source is actually saying is that we cannot rely on voting. I fully agree with your source that voting will not effect change. In fact, My post is not advocating for voting as a means of change. It is advocating for voting as a means of preventing things from getting worse, while we use direct action to make things better. Because the thing is, voting does work as a means of change when one side does it and the other doesn't. And the fascists will never stop.