No it isn't.
It depends on the context of "right wing" (Which, given it varies so much from culture to culture, is pretty useless as a term on it's own). It's certainly an Authoritarian and Moralist political philosophy that strongly pushes social conformity, which is generally considered the "Right Wing" half of Authoritarianism in the Western Context (versus Left-Wing Authoritarians focused more on economic factors IE Communists)
So, what would it take to get reverse Mccarthyism?
A large forgein Nazi/Authoritarian Right-Wing regeime that could be a credible source of forgein influence, or a massive shift in the actual broadly held opinions of the American people to the point extremism in the name of "White Identitarianism" was actually palitable to a substantial subset of the population. There are more Black Sepritists in the US than White Supremacists (A fact which amuses me, since both can get what they want at the same time) so any threat would have to be sponsored by/coming from the outside to be salient/real enough to fly. The only possible source I could see for this in the 21st Century is a Russia that took a haywire turn post-USSR, which could easily feed off lingering Cold War wariness and knowledge Russian dictators were indeed trying to shape our hearts and minds in the past (No comment on present events; resemblance to particular narratives is coincidental. Itd have to be something quiet further than Putinism)