In general, fascism distinguishes itself for its intolerance of political opponents, suppression of freedom of speech, and lack of respect for the democratic principles of a majority vote as well as exclusion or isolation of other democratic parties and the use of violence
I watched a video on this very topic last night. There are a list of attributes to fascism and he questioned whether Trump (used purely as an example) could be considered fascist. I see the modern left ticking more boxes than Trump.