Mussolini defined fascism by saying "everything within the state, nothing outside of the state, and nothing against the state."
That's not the aim of the right in America today, that is precisely what the left desires. Genuine conservatives in America today are intent on conserving our national heritage by divesting the federal government of its overarching power and returning it to the several states. Progs today aim to empower central government with more control and more money. However, the Left and its militant arm Antifa is constantly hurling irritable mental gestures at the right today and trying to sully us with the epithet 'fascism' when history shows that the left would adopt almost every plank of the fascist platform.
I wonder how much of their real argument is not really against the amassment of power that is the aim of both fascism and progressivism today but rather, at root, their argument is against the nationalist strain in Fascism because the left today is actually anti-nationalist. Lefties today are 'one-worlders', internationalist who are for open borders, who prefer to bow to the UN than revere our own constitution, and who really want to submit to international powers like the EU rather than protect our own national sovereignty.
Most progs nowadays have basically the same solution to all social and economic problems (give more power and more money to the centralised, collectivised government) but they are wholly invested in blaming the right for all the evils of the world without ever admitting that the worst evils of the twentieth century happened not because of patriotism or nationalism per se, but because of the centralisation and collectivisation of political power.
Albert Jay Nock struck at the one root idea shared by all the various forms of collectivism :
"The superficial distinctions of Fascism, Bolshevism, Hitlerism are the concerns of journalists and publicists; the serious student sees in them only the one root-idea of a complete conversion of social power into State power. At the root of all of them we find the same deadly formula of Hegel, that "the State incarnates the Divine Idea upon earth" and his old dictum that the State alone possesses rights because it is the strongest."
Robert Nisbet famously said that :
“Increasingly the objectives of economic and other interest associations become not so much the preservation of favoured immunities from the State as the capturing or directing of the political power itself.”
Although there is still a very confused and muddled centre and divisions on both sides, it seems to me that the political line today may be drawn between those who either truly want to divest the federal government of its massive, usurping, oppressive power because they understand that it historically causes horrific disasters, and those who really still believe in empowering central government but just want to pretend that that isn't what caused Nazism, Fascism, Bolshevism, socialism, and communism, and that this time, if the right progs are given that totalitarian power, they'll create real utopia.
I do believe, however, that there are alliances which can be struck and common ground that can be found with many on the left regarding the evil corporatism; that unholy marriage of big business with big government that is so integral to Fascism and so destructive to the market economy by suppressing competition from mid-sized and small business.
A conservative's enemy is not simply government, which they realise is vital to the defence of liberty, it's the State which tramples those liberties and which privileges some at the expense of others.