The thing is that Elon Musk is not just some guy with an opinion. He's some guy who has an opinion and owns a major social media platform where he tweaks the algorithm to serve his own purposes, similar to what TikTok is being accused of.
In democracies the power of government and media are supposed to be different branches of the system. When this is violated it's considered a threat to democracy. Like in Italy Berlusconi's media empire, etc.
This is an odd statement. GOP was in power from 2016-2020. People confuse entertainment and social media with news sources. Nearly anyone can pay to advertise with traditional or social media.
I think you're trying to describe Twitter and the other "conservative" media sources? These are for entertainment, but traditionally would advertise whoever paid them. Now the companies have been purchased or created to spread misinformation.