Earth Empire reeducation camps

In The Terror Within we see one of the guards of Zaofu firebend at Zaheer. In Season 4, we find out Kuvira has been locking away those she sees as non-Earth kingdom, like firebenders and waterbenders. Does this mean that she locked up that guard?

I hate it when people say Kuvira and Korra are similar. They are not! One is a power hungry fascist, who builds weapons of mass destruction, and kills ethnic minorities, while the other does not do those things. Kuvira being strong and motivated doesn't mean she's similar to Korra. By that logic basically everyone in ATLA and LOK are similar to Korra! The way the show and people try to say they are similar makes me sick, and I don't understand how could anyone say that. Also, Kuvira does not save her nation. In real life, Hitler helped Germany out of the Great Depression with his nationalist views and policies. But, he didn't really save them. Short term he did, but overall life sucked. Fascism is bad. Meanwhile Kuvira (an obvious analogous) does practically the same thing. She saves her people for two seconds and then immediately they are suppressed by her dark forces. She does not save her nation, she makes it much worse. And then she blames Korra and her parents for making her do the fascism. In conclusion, Kuvira is not like Korra, did not save her nation, and is the most evil villain in the entire franchise.