I agree with you we've been overly conditioned to worry about government censorship and not private platform censorship, and yet the former have elected leaders while the latter are unaccountable to the public.
That was in a sense Merkel's shock and public criticisms of the deplatforming actions. It's ironic because the criticism wasn't that there was censorship, it was that private companies were allowed to do it and not government.
Who is right, the American laissez-faire pro-corporate/neoliberal philosophy or the traditional European approach that wants government to have that duty?