Every new generation is less likely to stand up against an oppresive regime. Brave, honorable people tend to go extinct in oppresive regimes. It's the survival of the crooked and the idiots, quite an observable process in some countries.
Most people nowadays think the only way to get a measure of freedom is selling their soul to the devil and that's what they aspire to.
The only way some people would stand up against an oppresive regime is if the opposition was run by that same regime. Like in a good cop/bad cop dynamic.
There can't be freedom without truth.