[MrB]

Because “liberals” aren’t.
They are Marxists and Fascists that have labeled themselves as “liberals”.

[ronnyquest]

On the contrary, they do have their own writings:

Das Kapital
The Communist Manifesto
Rules for Radicals
et al...

[ronnyquest]

On the contrary, they do have their own writings:

Das Kapital
The Communist Manifesto
Rules for Radicals
et al...

People, including leftists, simply know that all those writings lead to tyranny, misery, and poverty.