Hello dear @achim03, I appreciate your comments.

Why do we need to elect people that we hardly know? Do we still need political parties? Do we need politicians at all? Couldn't the people decide directly with electronical votations on any subject and have a government that simply caries out the decision of the people?

These are the questions that we will continue to ask ourselves always, or at least for a few more years. And we will continue to do with blockchain or without it.
I have always thought that everything that involves a computer is vulnerable to modification. There are high levels of security in the systems but every day we look for ways to make them more impenetrable.
The blockchain provides the opportunity to make the counting of votes more transparent. It is auditable, it is visible to everyone. But to achieve its adoption in terms of voting, there is still a long way to go and the biggest obstacle to overcome is to win the voter's trust.