Israel (now broader Mid East discussion)
are they part of Wahhabism?
That term has become an exonym. As such it's not likely that all of those terrorist listed would self describe themselves as being such. Certainly not the Iranian backed contingent, it's the wrong religion to apply to them.
Who are a nation's citizens? Those who say they are.
That applies here, I wonder if there are many who would currently say they are Wahhab. Saudi Arabia is cracking down on individuals who might be described as being Wahhab. So I wouldn't think they would self describe as being that now to avoid being cracked down on by their own authorities.
The authorities there might chop off the heads of the people they crack down on.