It's so much more than that though
This is just a fantasy of the left because they don't like him. He's done nothing to exert himself as a dictator. He's even said repeatedly he would abide by the supreme courts with regards to their rulings on executive orders.
The conservative movement under trump is all about less government and de-regulation, preservation of freedom and the bill of rights. Sure sounds fascist doesn't it.
Self explanatory why this is the most ironic argument by the left calling Trump and his supporters Fascists. The DNC worked directly with mainstream news networks and social media companies for years to form preferred narratives. They had people removed from social media accounts for being critical of their policies. In some cases they even go banks to cut off business with conservative voices. Trump spent 8 years being prosecuted and litigated for everything under the sun, followed by two attempted impeachments by the Democrats. When that didn't work they tried to assassinate him...twice. When that didn't work, they took out one of his biggest spokespersons.
Now the fact that there are legions of leftists out there gleefully celebrating with impunity the death of Charlie Kirk and wishing Trump be next also flies in the face of their delusion of living under a fascist regime. If they truly living under a totalitarian fascist society they people probably wouldn't be around anymore