000646, you wrote:
“You can judge “morality” of a group or ideology objectively by looking at it and seeing if it imposes suffering on the world or does the opposite.”
There are two problems with this position. First, as you yourself hint at, it is extremely difficult, if not impossible, to determine what will impose the most suffereing over the long term. ISIS might argue that they are causing a lot of suffering in the short term but in the long term the world will be vastly better off under a thousand-year world-wide caliphate. There is no way to demontrate, or even provide evidence, that ISIS is incorrect.
Second, and more fundamentally, by what objective means did you determine that “suffering” or the lack thereof, is the most important thing? Maybe truth is the most important? Maybe justice is the most important? My what objective means did you determine that it is moral and good to avoid suffering and immoral and bad to cause suffering?
I suspect that your “objective” standard, is really just your personal subjective likes and dislikes. You dislike suffering and so you call it immoral.