they think will if this happened, they will be information about situation from western press. they think western press will not try to focus on bad aspects of such protests ( they burn cars or something, they say some questinable stuff etc.). they think they will not drop their support for this because how their media paints the picture. root cause is that they don't think they are fed propaganda, they are given truth. I remember a major protest happened in 2018 and israel killed 200 of protesters? did the regime fall, of course they did not. They don't even know it. remember: "soviet/russian/chinese propaganda is so strong" is a lie. if something is a good propaganda, you would never know it and people there know it too. Actually the strongest propaganda belongs to west. Much fewer percentage of their people questin the propaganda