Some think its humane to be humane to those who are inhumane but they are logically wrong and in fact sustain those who are inhumane by not isolating and disenfranchising their inhumane behaviours.
Thus, enhancing and prolonging this use of barbaric actions by accomadating and allowing it to occur via your humane efforts towards the inhumane.
The reason for this is based on their own faults, they do not trust their own value judgment system and thus project their inabilities to choose right from wrong onto others and say 'how can you say what is inhumane or not' when it is more than clealry obvious to the standards of civil society.
If you can't figure out the difference between the two you yourself are then not humane. Being incapable to differentiate the two, places you in this same subclass of savagery.
It is not intolerant to not tolerate bad behaviour but it is in fact intolerable to allow this same bad actions to thrive.
Your support of said behavior in fact negates your own humanity that you beleive you are protecting.
By supporting the inhumane you have in fact yourself become inhumane. The inability to discern between humane and the inhumane makes you inhumane and therefore part of the inhumane class of actors and not a thoughtfull outsider that you pretend you are.