"Is it true that liberals don't love America?" They like the weather and the scenery, possibly the food. As for the essence of the American nation, no. They fight it at all angles. sorry, but America was NOT concieved as a socialist nation, and that is what Leftists want.
However, now that that attempted swerve has been dealt with, back to the more important questions:
1. Were there Communist agents in high places in the U.S. government?
2. Was their possible presence ignored or disregarded by the DEMOCRATS in power at the time?
3. Has the Left, unfailingly over the past century, taken positions ultimately AGAINST America?
These were Coulter's central points. They were fully on-the-mark.
1. Were there Communist agents in high places in the U.S. government?
No doubt. Numerous historical works have already established this.
2. Was their possible presence ignored or disregarded by the DEMOCRATS in power at the time?
Apparently not. Was it not HST who prosecuted the Rosenburgs? See Horowitz's review for more on this.
3. Has the Left, unfailingly over the past century, taken positions ultimately AGAINST America?
Liberals are not all leftists. It's not even true that all leftists have taken positions against America. Note Nat Hentoff and Christopher Hitchens. Why can't Coulter deal with shades of gray?