Op poses a question to help the reader view the action from a more empathic perspective. The goal is to quell all terrorism in the same sense as to prevent all future mass killings. This is the action any country will take.
The utopian thing comes from your misguided thought process. Rather what is being expressed here is an attempt to convey understanding that china's actions are a survival response to end slaughter and terrorism not an attempt to create a utopia.
It is a reflection of your own insensitivity that you those words didn't trigger empathy but rather all you saw was a "utopian thought experiment". To top it off you made a joke about block chain then tried to hide your true nature with a feigned apology. It's clear you don't give a shit either way.
No need to apologize for being insensitive and lacking empathy. You are what you are.
The OP's imagined, unspecified design to "quell all terrorism" necessarily rationalizes the actual harm that a primary source specified and had photographed in this article. Digressing from actual harm of a religious minority being sent to "re-education camps" to instead discuss a utopian thought experiment is morally unserious at best.
It is, however, insensitive to bring block chain zealouts into this. I apologize for that.