Namoos-e-Risalat rally in Lahore: It’s your turn now, dogs!

Re: Namoos-e-Risalat rally in Lahore: It’s your turn now, dogs!

Please explain that. Why would Shias join Sunni Tehreek? Just because they oppose Talibans? And Where do you get that Taliban or Jamate Islami will oppose Blasphemy laws?