Various political parties could compete to displace the Republicans with more representative electoral systems. voters could choose their preferred candidates while still counting their votes against the Republican party, even if their choice doesn't win, all without the spoiler effect. Since voting methods are determined at the state level, federal reforms aren't necessary; some states have already implemented changes. For example, Alaska recently opted for a more moderate conservative over Sarah Palin thanks to ranked-choice voting.
Who would oppose multiple opportunities to weaken Republican influence? The Democratic Party. In blue states, they could replace the First Past The Post system with one that eliminates the spoiler effect. Yet, time and again, Democrats remain inactive on passing state-level electoral reforms in the states they control.
Meanwhile, Republicans are working to safeguard FPTP voting in red states. Why do Democrats continue to use a system favored by Republicans? Why arent they searching for an alternative to FPTP voting? It's not that Democrats are unaware of the flaws in the voting system. Mentioning a third-party candidate to any Democrat will quickly reveal their in depth understanding of these mathematical flaws in the voting system. particularly concerning the Green Party apparently.
If Democrats understand the problem with the voting system, but refuse to address it, it suggests they prefer a tenuous balance over a potential rise of authoritarianism rather than genuinely competing for our votes. They seem more willing to allow the country to drift toward authoritarianism than to engage on an even playing field.
It appears to be party over country, regardless of the consequences.