Partly as a result, the MAGA movement is drifting toward authoritarianism. The most important media personality on the right, Tucker Carlson of Fox News, released a disingenuous three-part documentary in November suggesting that the Jan. 6 insurrection was a “false flag” operation. He and others in MAGA World, including Mr. Trump, also promote Hungary, which in its 2018 report Freedom House said is “sliding into authoritarian rule,” as a model for the United States. The Republican Party is also drifting ever closer to the open embrace of political violence and martyrdom, not merely excusing but defending actions like Ashli Babbitt’s effort to break into the House’s inner sanctum on Jan. 6 — actions that came within seconds of succeeding…

Intimidating election officials, lying about elections and storming the Capitol are not actions promoted among mainstream Democrats. And while the progressive left undoubtedly has influence in the Democratic Party, if it exercised the near-total dominance that Republicans claim, Joe Biden would not have won the Democratic nomination. Conservatives certainly have their disagreements with President Biden, but he has not defunded the police, attempted to pack the Supreme Court or promoted the Green New Deal or Medicare for All.

But assume that your threat assessment is different than ours; that as a conservative Republican you believe the danger to the nation is greater from the far left than from the MAGA right. You should still speak out against what is happening to your movement and your party for two reasons: The sins of the left do not excuse the sins of the right; and what is happening on the right is wrecking authentic conservatism in ways the left never could.