This feels like an oversimplification -- let's not forget that billionaires have poured untold sums of money into funding right-wing propaganda...and that virtually every major platform is owned and operated by billionaires with right-wing agendas.
Not only did Elon Musk spend billions on Twitter to make sure only voices he like get platformed, but Youtube has a well documented history of pushing more and more radical right-wing content to users, and Donald Trump just made sure that the one online place where left-wing voices were able to dominate (TikTok) was forced to be sold to his buddy, Larry Ellison.