Its quite simple, you can declare all equal.. and all I have to say to ten people is that you are subverting Islam according to so and so scholar on 1950 who quoted so and so of 753 A.D. The result is that those ten will grow to 1000.. and they will lynch you.. while 120 million will keep quiet.. 50 million will nod their heads in part confusion and part agreement.. and the rest will not even care about it because their lives are too busy.
This is how change happens - in fits and starts.
The 1000 or 10,000 might lynch one person, maybe 5 more.
Slowly when those 1000 are prosecuted, the others will see it as an example and not take part in something similar when next time they are incited by a mullah.
Ofcourse the State might not prosecute those people, but slowly, as the governance capacity of Pakistan increases, the State will be
forced to prosecute them. As I said, this process takes decades.
I can give the example of India here - we used to have
hundreds of riots in
each State of India each year for decades. Slowly as law improved, the riots decreased. Infact in our 65 years of history, the first time that rioters were prosecuted was for the 2002 riots. This created an image in people's minds that if you riot
now, you will go to jail.
Then the Odisha riot accused were prosecuted. Today riots mostly only happen in State's which have ridiculously weak governance and policing structures like UP or maybe Bihar.
While the rest of the States have reduced rioting because the law is clear and people slowly push the government to act on the law.
There has to be some start to change - changing the law by far sighted men/women is one of them.