Fascism is all about control.
The republican party has been pandering to several disgruntled and disenfranchised groups of Americans since doing it back in the 1990s worked to get "W" elected. Those groups are mainly fundamentalist type Christians and racial and ethnic bigots. Both of whom exist in significant numbers and have been angry for a long time about their being marginalized by a cultural shift toward liberalism that began back in the 1960s and that resulted in women, gays, blacks, and foreigners being afforded equal status with white, male, heterosexual, Christians in our society. Causing a lot of fear, anger, and resentment on the part of these newly marginalized groups.
And now they want their power back. They want to be in control again, and that's what the republican party has been promising them to get their votes. The republican party never actually intended to give them any control, as that was always reserved for the wealthy elites. The republican party was nothing if not the party of, by, and for the rich. But after they'd promised this for so long, and fired up this angry, resentful, disenfranchised base for so long, it basically exploded behind Donald Trump and he took over the party. So that now, more than ever, republicans are all about control. They want their white, male, heterosexual, Christian butts back in the driver's seat and to hell with democracy if democracy stands in their way! To hell with the law if the law stands in their way! To hell with YOU if you stand in the way! They are on a holy crusade, now. And that's basically fascism: control without opposition.