Those Klingons were never given an opportunity or choice, they were given one lifestyle and not given any other options. It's the equivalent of if you had a child and locked the child in the closet for the first ten years of their life.
"Who are we to say that lifestyle is wrong?"
Those children have a right to be told all the options so they can choose their own lifestyle, whether it's the 'warrior' lifestyle, the imprisoned agrarian lifestyle, or some other lifestyle entirely.
That would be the ideal scenario. I didn't see the situation as black and white.
I had no problem with the youngsters leaving the isolated community. They should have a chance to expand their horizons and to seek out opportunities elsewhere. However, the youngsters were destined to go the Klingon home world. What options would they have there? It would be the warrior way, or get out of the way. They would be indoctrinated to follow the warrior lifestyle, and be taught to hate Romulans as well. Worf personified the Klingon way of thinking.
If the Klingon youngsters had been taught the Klingon warrior culture during their time in the compound, they would have wound up killing everybody and destroying the community.
It was a bad situation to begin with, but it was made, for better or worse, livable. Those Klingons and Romulans learned to live in harmony. Doesn't that count for something?
The sad thing was that it was the very warrior code, that those Klingons once cherished and lived by in the first place, that condemned them to the situation they found themselves in.
The Romulans offered to let them go free after the Klingon government refused to take them back. Those Klingons chose to stay because of the intolerance of the Klingon culture. They were deemed dishonorable for having been captured. They couldn't go back. Ironically, this is the very same culture that their children would be going to.
At the end of the episode, Worf had to lie about the origins of the youngsters. The truth couldn't be told, not only to hide the secret of the community, but to protect the youngsters from being condemned as dishonorable. They would have had to live a life of lies.
I am not saying that the youngsters should stay in that community. Why not give them asylum in the Federation? I assume they would have more freedom of options living in the Federation. Being raised and living within the Federation was good enough for Worf, why not for them?