This is not simply about liberals or conservatives, rather the extremes on both sides that denigrate and vilify the other. If people want to make a case for separation of religion and State and convince Pakistanis to support it, then they should be allowed to do so and we should respect that position, even while arguing with civility against it if we disagree.
The same goes for the liberals, while they have every right to make their case for the direction they think the country should go in, they should do so rspectful of the conservative sections of society that support the role of religion in the State, while arguing against that position with civility.
Some argue that liberals are a significant minority in Pakistan and therefore should not be held to the same standard and their transgressions (in terms of uncivil discourse and denigration of conservatives) should be tolerated to a degree. I disagree - the liberals need to be held to the same standards as conservatives. Both should be condemned when they cross the line.