We don’t ignore it when a socialist country takes security measures, we say they’re an unfortunate reality of steps a country has to take in order to defend itself against external and internal aggression. Having your country go socialist earns you a lot of enemies and having a lot of enemies means you have to build up things like intelligence agencies, military apparatuses, and centralized agencies for combating sabotage and spying. These are things every country does, but western nations like to paint the security measures that socialist nations take as purely authoritarian, or needlessly tyrannical, or whatever other word gets thrown around. The nations yelling at socialist countries to change their domestic policies are usually the most imperialist and have the most to gain from socialist states being dismantled.
When your enemies are the global capitalists who operate global finance and industry, you should probably build up something to defend against it. Nukes tend to work as a deterrent, but they only go so far when you’ve also got an internal population that can present a security problem.
China’s taken the smartest strategy of all honestly. They’ve intertwined their economy with the imperial powers to the point it’s impossible to disentangle. The west can’t take violent action against China, since that’s where the industry is.
Also, so called authoritarian measures against our enemies are a good thing. It’s good when fascists, racists, and imperialists lose civil liberties like the freedom to express themselves, organize, fund politicians, or operate businesses.