Question about real consequences of being a 'pariah state'
I'm going to propose that being a pariah state (if the term has any real meaning at all) is of less consequences in the future than it would have had in the past.
First what does it even mean? Does it mean Israel be locked out of all international markets? (Has any nation been locked out all ALL markets? Even North Korea has China) That israeli citizens are not welcome to travel? Anywhere?
Since the definition itself is a bit weak let's just define a version of it.
Israel can't sell to Europe or buy weapons from Western nations. (Even in the most strongly enforced boycott they would still have access to food and raw material markets, but I suspect some of the pro Palestinians might want even that blocked)
Now in the past and up to the present I would think this would create significant hardship...but going into the future...less so.
Why, a couple of reasons
manufacturing is becoming more automated, and micro or specialized manufacturing is becoming easier. Economy of scale is still a factor but a receding one.
Recovery and recycling is much more advanced today than in the past. There a economic threshold where it becomes more efficient to recycle than to mine raw materials and make from scratch. So even if cut off from some major raw material sources , it maybe possible to make due at least for a while.
Automation, especially of the humanoid robot type, can make production in isolation much more economic than ever before. You will not need millions of human workers to manufactor the goods to meet the civil and military needs of even an isolated people.
much of business travel is vertual today already, if Israeli citizens are made to feel unwelcome, then they will just not come. But they will then invest on creating the experiences they want locally.
energy has in the past been a major anchor to bind a nation to the international community, but the writing is on the wall. Large solar farms and electric power will be more important than coal and oil in the future.
With the changes in technology that are clearly on the horizon today could a nation like Israel meets it's needs by just going it alone?