I suspect that the success of liberalism lies in its simplicity: The idea that every person is born with an inherent right not only to live, but to flourish. The universality of this tenet is disarming. Yet it's argument is at heart consistent and self-healing in that it applies in particulars only to the extent that the premise is maintained.
There are countless, ageless varieties of opposition to the liberal idea, but all have fluttered for aimless centuries around the sadly mistaken assertion: That only certain people are born with the right to live, fewer still to flourish.
Liberals in Hamtramck, Michigan celebrated the election of a Muslim-majority council in 2015. But a recent council majority vote to exclude LGBTQ+ flags from city property has presented a problem. Though it has become fashionable to play this sort of predicament up as a failing of liberalism, that would be wrong. The truly basic human values of fairness, honesty, and common decency are demonstrable adjuncts to the simple liberal tenet cited above and taken together are seamless and irrefutable.
Our devout friends on the council, who might even themselves have fled the intemperance of Outer Bumfluckistan for the openness of Hamtramck, are going to have a hard time explaining themselves to their own children.