This is a tough one. Until you experience censorship yourself. It is one of those things that you know exists, but it does not affect you. So why should I care?

Kind of like convincing people to start carrying a gun with them wherever they go. They have not been mugged before so why should they need a gun to protect themselves and their loved ones?

After being censored hundreds of times while trying to save lives. As well as being robbed at gun point before. Only now do I know the true value of freedom of speech and being able to carry the right tool to properly defend myself and my loved ones with equal lethal force.

To try and convince someone that censorship resistance is important. You nees to get them to walk a mile in your shoes. They may not be willing to take the risk on their primary accounts, but maybe have the conversation of you do not know what it is like.

Then give them a burner account that is freshly made and dare them to say things that are controversial, or wrong think. They will then understand what it is like to be censored and fighting to get their voice back. Either that, or if this is a random conversation in person. Just slap a piece of duct tape on their mouth mid conversation and run away. Both would have a similar effect.

Then they will be able to finally see the value in censorship resistance. Once they know what it is like to feel the ban hammer of being silenced.