As a Trump supporter, I wouldn't say so. Most of her Republican support would have gone to Biden had she not been on the ballot. She was just a more palatable choice for them.
Plus I've always been a proponent of protest voting. I've voted for Republicans, Democrats, Greens, Libertarians, and indies over the years. I would never hold it against anyone to vote third party, regardless of their reasons, because I think a stronger third party presence is inherently good for democracy.
Hell, if the Greens somehow become the Tulsi Gabbard Party I'd leave the GOP and join them.
Good point and US is unusual in its two party system. Most other Western democracies have multiple parties. Realistically US should have 4 to 5. Have a Trump like right wing populist, a more standard traditional conservative GOP, a dead centre party that appeals to types who find GOP too right wing and Democrats too left wing, a moderate Democrat and more socialistic party. Otherwise Trump for first, Romney type for second, not sure who I can think for third, Biden for fourth, while Bernie Sanders type for last. In most European countries you have multiple right wing parties.
You would have a Trump like figure leading your right wing populists while Romney type mainstream. Examples are Sweden Democrats vs. Moderate party; Finns party vs. National Rally; Danish People's party vs. Conservative people's Party; Afd of Germany vs. CDU/CSU; PVV of Netherlands vs. CDA or VVD; National Front of France vs. Les Republicains; Swiss People's Party vs. CSV; FPO of Austria vs. OVP; Chega Portugal vs. Social Democratic Party (despite name they are conservative), Vox of Spain vs. Popular Party and Lega of Italy vs. Forza Italia. In US instead all under GOP although many of the moderate types would probably be Democrats. Likewise most democracies have same on left. Heck even UK and Canada while not split on right, on left Biden would be a Liberal Democrat in UK and Liberal in Canada while Bernie Sanders Labour in UK and NDP in Canada.
For presidential solution is a run off vote where top two go to second round so in first round vote your conscious and then in second round you can block a party you dislike. For congress and senate, perhaps coalitions which are norm in most democracies solution as wouldn't be a majority. Now if continue with current system, probably would get a lot of strategic voting, maybe both sides could even cut a deal not to run against each other or only in safe areas. But if Proportional representation, then you could have multiple and form coalition.
Now this would all require a constitutional change so don't see it happening, but just saying US is unusual in Western democracies with only two parties.
