I have these feelings toward liberalism because that's absolutely what the Left's intention is. And I sourced where the argument is made point by point with examples.

Several other books:

WHAT'S SO GREAT ABOUT AMERICA by Dinesh D'Souza

SLANDER by Ann Coulter

See in particular the chapter "Four Who Made A Revolution" in DEATH OF THE WEST. The 60's revolution is deeply rooted in Marxism, and after the failed attempts in the U.S. and European nations to spark a worldwide communist revolution, several Marxist leaders came up with the idea to undermine confidence in Western governemts, Christianity and other institutions, by taking over news media, taking over teaching in schools and universities, and revisionist history, to crumble the soccial structure and make a newly indoctrinated generation open to replacing it with a marxist/socialist system.
Which began to occur in the 40's and 50's, and reached full blossom in the 60's and forward.

This is evident in the public statements of Barack Obama, Wade Rathke, Ron Bloom, Joseph Biden, Hilary Clinton, Mark Lloyd, Van Jones, and many others who are getting bold and arrogant in their power grab.
All of whose marxist comments have been youtubed here.

Liberals' intention was to take over the system and collapse it from within. And to create such a distrust of government, and such an apologetic self-loathing for our nation and its history that no one would defend the old system, and either passively or eagerly accept the new order.

Saul Alinsky.
William Ayers.
Cloward and Piven.

Barack Obama, Hilary Clinton and the others are marinated in their ideology, and in Alinsky's vile and deceitful Rules For Radicals tactics.