Withholding votes no, but IMO the American voting system (at least at a national level) seems pretty broken to me. FPTP, the weird bias to rural areas etc.

Really it should be changed so that it doesn't always result in this eternal standoff between the two major parties.

Ireland, Australia and New Zealand dumped FPTP and were better for it. It's just that the US has this kind of romantic idealism about the original founders, as if they were always right and their ideas still hold as much merit in this day and age of voter influencing through digital means, so I don't really see it happening there. But it should, in my opinion.

Right now it seems like every major election is choosing between bad and worse there and voting for an outsider is just a lost vote.

In that sense I can understand the reluctance of voters to actually show up. Especially in states that aren't swing states.