It doesn't seem strange at all. I have never once heard someone suggest that staying home is a vote for Biden, but it's pretty well agreed upon that not voting is a vote for Trump.
...so Trump should win in a landslide, right? Yet he lost once. This seems like a glaring error in the idea that a protest vote is a vote for Trump.
Look girl, it's been a good debate, but I think I'm going to call it here. I've been trying to get increasingly more ridiculous and you keep replying like you're really engaged in this argument and I feel like I have an obligation to help your blood pressure by letting you win the argument before it goes too much further.