Trains are great, but some level of personal transport will always be necessary at least supplementarily (e.g. bikes, scooters). And we don't know how much natural resources would be used by flying vehicle construction, maybe there is a decent way to do it.
Acknowledging that a revolution can improve society even if it isn't flawless is one thing; actively promoting those "flaws" is another. I do believe that the humanity would ideally be acknowledged in the oppressors. Moreover, the benefits of free speech are greater to society than the individual.
The benefits to society of free speech are really only realized if people who have incorrect/offensive/unpopular perspectives on important issues are able to express them without severe enough consequences that they choose not to out of fear. That could include community reaction, depending on what it is.
https://www.mdpi.com/2673-4117/2/4/30