No minds are "put in jails".
But they do not have a right to unfettered access to me.
I'm free to choose to set standards, and the standard of requiring them to have a second account if they both want access to me and to content I find deplorable is a really low barrier.
And others are free to choose to commune with me in the spaces I want to spend time in, and communities are free to set their standards.
I've not argued for censorship. I've argued for my right to shield myself very mildly from people I want nothing to do with, and for others to choose to do so with me.
You're free to say what you want on your instance or those of people who believe as you do or are fine with your speech.
Nobody is stopping your speech, just your ability to impose it on those of us who does not want it near us.