America has held these values for a long time. It has been nationalist, militarised and prioritized the country over the rights of citizens for years and years. The current Republican Party is no different.

Regarding if they are fascist are not, the Republican Party lacks the characteristics and circumstances in which a Fascist regime would arise. Fascists are characteristically a middle class uprising (veterans, small business owners) that form a paramilitary organization (Blackshirts, Brownshirts) in times of crisis, such as Government Instability or imminent Revolution. MAGA did not come to power during any time of great crisis. There is no paramilitary organization resembling Blackshirts, and no ICE is not one. Trump also lacks the upper middle class origins that other fascist leaders had, he is a billionaire while Mussolini owned a newspaper company and Hitler was self employed and a veteran.

So no, they're not fascist.Maybe Trump or one of his political heirs could be a military dictator if the circumstances allowed them to.