And the anti-trump candidates lost their primaries, and their elections.

The republican party and more importantly, the leadership, did everything they could to sabotage those elections. They pulled funding in most of them, in some of them they even funded opposition candidates (looking at you Alaska). Those elections were so close that they were within spitting distance of victory, and had they received that funding they would have more than likely saw victory. On top of that, in the case of Kari Lake, litigation is still ongoing because of the absolute shitshow that was the entire election race in AZ. You cannot tell me with a straight face that the election was ran properly there, and that everything was done above board, especially when it was so blatantly not.