If you were to debate critics of liberal democracy, how would you respond to their most common criticisms?

What will be an ideal response?

An ideal response will:
1, Note that critics of liberal democracy argue that the majority can threaten liberty, that the people are irrational and incompetent, and that majoritarian democracy threatens minorities.
2, Indicate that despite these concerns, liberal democracies are better than alternatives.
3, Provide a response to each of the contentions of critics. For example, while critics note that the majority can threaten the liberty of the minority, the alternative is minority tyranny, which would mean that the minority tyrannizes the majority. Moreover, there is limited evidence that the majority consistently tyrannizes the minority. Alternatives to liberal democracies would not protect minorities to a greater extent.
4, Discuss how despite claims that the people are irrational and incompetent, there is evidence that the public is more informed, sophisticated, and stable than has been asserted.