Yes, most urban people I know in France are afraid to even say they’d interact with « far-right » voting people. When I tell them my views, plenty call me a Nazi. I usually jokingly reply « If I were one, I’d gas you, and you know I would. »… I am writing a song about this « Fachosphère » thing. Here’s the « refrain »:

La Fachosphère, c’est moi, c’est toi, C’est ton voisin qui t’exaspère, Parce que vos visions diffèrent, Que ta morale ne s’impose pas… Te sortant de ta zone de confort, Foulant ton peu d’autorité Sur des poncifs douteux fondée. La Fachosphère, c’est avoir tort.

Deepl translation:

The Fachosphere is me, it's you, It's your neighbor who exasperates you, Because your visions differ, That your morals don't impose... Taking you out of your comfort zone, Flouting your little authority On dubious cliches founded. The Fachosphere means being wrong.