Recently, a number of media analysts who seem to have forgotten fascism is a word, have looked towards the dark days of McCarthyism in the US to find historical comparisons for the Trump regime's fascist attempts to transform American society into a white ethnostate dictatorship. There are valid reasons to use this comparison as there *are* eerie parallels to be found between the McCarthyist American right's ever expanding war against made up "communist infiltrators" and both Trump's actions, and the responses to it from a mainstream establishment far more committed to profit than civil rights; including the weaponization of fear to silence objections and quell dissent, the pre-marking of folks ideologically opposed to fascism for reprisal, and the willing capitulation in advance of much of the US establishment to a fascist agenda. Placed in the proper context, which includes noting that the Trump regime is merely installing a fascist dictatorship through a new type of McCarthyism, the analogy is quite useful for getting people to understand how the regime is operating, and how its methods might be countered.
The problem of course is that context is often missing. Few if any of the folks referencing McCarthyism would be willing to admit that even McCarthyism was just another fascist takeover project designed to eradicate dissent under the guise of "anti-communism." Hell, you can still find articles about Senator Joe McCarthy using conspiracy theories to defend Nazi war criminals who slaughtered American soldiers on the Smithsonian website (https://www.smithsonianmag.com/history/senator-mccarthys-nazi-problem-180975174/) - at least until Trump deletes them. In that context, the use of McCarthyism as a more genteel accusation than fascism, which is how a lot of folks writing in mainstream sources appear to be using it, is nonsensical; McCarthyism was just a project to install fascism in America.
How successful that project was depends a lot of whether or not you think it ended with McCarthy's fall, the defeat of Goldwater in the 1964 US presidential election, the implosion of Nixon, or basically never; speaking for myself I'd say you don't get Trumpism without the US War on Terror, which in turn doesn't happen without the legacy of Vietnam and the COINTELPRO program, which ultimately spawned out of McCarthyism and the Cold War struggle against "communism." In that context, it's probably better to understand the modern American fascist movement as a descendent of McCarthyism, rather than a totally novel expression of it.
Furthermore, while the repressive tactics and ideological policing of the Trump regime patterns well with America's fifties-era Red Scare, it's important to understand that Trumpism has already moved beyond many of the goals the McCarthyists were trying to accomplish. While anti-communism often stood in for white nationalism, and supremacist power structures, it ostensibly focused on ideological policing; the Trump regime however is already targeting people for who, or what they are, not just what they believe; the anti trans pogrom, the bipartisan war on migrants, and War on Terror style Islamophobia have already paved the way for eliminationist policies in a way McCarthyism existed to accomplish.
Given the term's ability to both heighten awareness of, and still minimize the threat posed by the Trump regime's project to install a fascist dictatorship, I'm going to proceed cautiously with sharing articles adopting McCarthyism as a framework to explain the actions of Trump, and his apparent Secretary of Nazi Shit, Stephen Miller. In doing so however, I'm begging readers to keep in mind that Trumpism, is definitely a fascist project, and the fact that during the installation phase the regime's activities pattern match so closely with the 1950's US Red Scare says a lot more about how fascist this country already was, than it does about why there's a meaningful difference between McCarthyism and fascism in general.
Someone won an election in 
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