Targeting multinationals will cause a reaction from both the state and from business. The state response is predictable, and we have already seen some manifestations of it.
They will mobilize propaganda against the strategy, claiming that it is terrorist and destabilizing, violent, and a plot by Egypt’s enemies. Ironically, of course, Egypt’s enemies have indeed taken control of the country already by precisely these means.
And, of course, they will respond with attempts to distract the rebels from the strategy, and draw them into conflict with security forces. The obvious way to do this is by committing atrocities against the population to enrage the opposition and lure them into revenge operations, which will divert them from targeting corporate interests.
One expected response of investors will be to shift their investments into other sectors, to re-organize their capital in Egypt. This is what we have seen with the actions of Kuwait. This is a tactical retreat by investors, not an actual withdrawal. They will try to protect their capital by redirecting it, perhaps waiting to see if Sisi can destroy the opposition by the measures mentioned above.
Of course, their first reaction is not going to be to capitulate with revolutionary demands. Power always underestimates opposition, and will usually believe that they just have to wait for activists to become tired or hopeless or bored.
This is why persistence is so vital. You have to prove that it is actually urgent for them to capitulate; make them understand that waiting for Sisi to destroy you, will destroy them.