But there has also been the rise of populist movements within existing liberal democracies, and particularly within the United States and Britain, wh… - Francis Fukuyama

The practical reason has to do with that original purpose of liberalism, which was to lower the temperature of politics by taking final ends off the table, and allowing societies to govern themselves when they face religious or national diversity... [T]hat remains one of its biggest selling points. In India, the republic that was created by Gandhi and Nehru was a liberal republic. They did not define themselves in religious terms. They knew that they had to deal with the incredible diversity, not just religious but in terms of cast, , language, many other dimensions... [A] liberal republic was... the only way of accommodating that diversity. What prime minister Modi is seeking to do... is to shift that national identity to one based on Hindu nationalism, which then excludes the up to 200 million Muslims that live in contemporary India, as well as... Parsis, Christians, other people... When he was the chief minister [2001-20014] in Gujarat this led to communal riots, and I'm afraid that India is moving toward that kind of communal violence once again today. ...So that's the pragmatic reason.

[T]herefore tolerance of diversity, of people that don't believe the same thing that you do, has always been at the core of this pragmatic project to enable diverse populations to live with one another.

[I]dentity is something that is universally desired by people. In a liberal society... people can associate based on... identity affiliations... and that they're free to do so... [T]he danger... resides when the state begins to endorse identity categories as... fixed... and then to distribute resources or... access to institutions on the basis of those... That's the point at which... you risk... hardening these notions of identity into self-regarding groups that are living next to each other... In the UK you get state supported religious schools... for Jews, for Muslims, for... other faiths. People should be free in a liberal society to set up private schools... to bring up people in a religious tradition. I don't... see why the state ought to be supporting that, because what you don't want to do is to have... young people educated in closed communities where they have nothing to do with people from other communities. ...[T]hat's fundamentally illiberal... [T]hat's... a mistaken policy that's... going to harden those divisions rather than to encourage a more... open and tolerant society.