Mark Ruffalo urged others to call on PayPal to offer its services to Palestinians living in the West Bank and Gaza in a tweet on Monday. The American Hulk actor, who has previously expressed pro-Palestine views, shared a petition on campaign website SumOfUs that says the digital payment giant is “discriminating against Palestinians”. “Friends: PayPal operates in Israel’s illegal settlements – but is refusing to provide service to Palestinians in Gaza and [the] West Bank, in direct violation of UN guidelines,” Ruffalo said. “Join the international call [for] PayPal to end its baseless discrimin…