Neither Hitler nor Putin came to power through Twitter of social media. You said:

"but Twitter is an integral part of the political discourse of many democratic countries and Elon realizing his vision is a danger to democracies all over the world."

I don't believe that to be true. That is your belief, and it is not backed by evidence.

Both the US and the UK were influenced in elections during the past 6 or 7 years for one reason - that their populations are relatively uneducated and the people in those countries belief cultural myths.

Russia tried the same tactics in Northern Europe, and they feel hopelessly short.

Elon Musk is going to fall flat on his face.