You do not appear to have watched the video, as he does not suggest jailing them now, he is clearly saying that if they have been found out further down the line to have been deliberately misleading and that has harmed society, then they should face prosecution.
And if you are on the right, then why would you not want criminals prosecuted? What right wing are you on that is advocating being soft on crime and criminals? "Tough on crime" is kind of our thing on the right.