People react against their governments for good reasons. Egyptians, for example, threw off the yoke of the tyrant Mubarak only to have it reimposed by US/Israeli sedition.
If you cut right to the chase you will admit that Yemen's problems stem from Saudi Arabia/Israeli fear of Iran. Iran's revolution, after all, was SUCCESSFUL despite US/Israeli sedition.
Can you blame Iranians for wanting to share their expertise and success with other downtrodden people ? Can you blame downtrodden people for asking for it ?
Cuba's revolution is another example . Not at all popular with Uncle Slam.