Theoretically, all people are capable of being president, but I ky very few get there, irrespective of ability.
You're right about their attributes being a guide. I reckon it's down to the confidence, more than anything. Bullys are typically seen as acting out due to their own insecurity. However, the skills learned in putting themselves above others likely helps to achieve personal goals. It's likely similar for attractive people and confidence. Confidence is a drug that affects other people.
Historically the world was more oil dependent and the middle east had lots. That led to conflicts both internally and from the west. Israel was seen as an ally within that region. Allies can be helpful for logistics and safety of good passage.
However, as the world transitions to cleaner energy, the middle east becomes less important. America.is now a net exporter rather than importer.for instance. So Israel is using all its political capital to carry out the genocide it's wanted for years. Governments are gradually turning on them die the grotesque evil they are carrying out and the repercussions from voter sentiment.
Add to the mix historical racism and antisemitism, the holocaust, Netanyahu's legal troubles etc and it starts becoming more complex.