Because they've been deplatformed from everything you fooking maniac. The absolute cope saying that this was done "to make right wingers think there is a conspiracy against them" is some deep, deep, mental gymnastics, and then saying prove that this happened... I always regret taking 15 seconds from my life to read your posts.
youtube still has plenty of right wing content so no they haven't been "deplatformed"
in fact youtube and social media as a whole played a major role in radicalizing the right and getting DT elected.
the right wing has a massive victimhood complex, and yes virtually all of their conspiracy theories revolve around them being victims of some "liberal/communist" conspiracy, so no it is not "mental gymnastics" The president just gave a 4th of July speech claiming there is a "leftwing conspiracy against them"
its out in the open that the fascists are and always have portrayed themselves as victims of a conspiracy. Trump is saying it openly.
youtube and google etc are a monopoly, and they came to prominence through publicly funded works such as power lines without which their companies would be impossible to run. Multi national corporations who take no loss of profits from deplatforming users, who brought millions to their site and made them the monolith they became, is not a simple issue of private companies etc.
by this same logic every single business would not be possible without public funded works such as power lines, roads, telephones, etc. etc. and would also be impossible to run.
Do you not believe in "free markets" If so, and if there are many people who think like you, start up your own alternative, you have a "free market" opportunity to make money and promote your own ideas.
Or are you scared that not that many people support your ideas ?