Sandman,
To condemn an idea merely because someone with a differing point of view, or an actual criminal expressed an appreciation for it, does not make it a bad idea. It does not make the idea a dogma of the "legally challenged" either. Neither does it make it less truthful. To attempt to tar all with the brush of impropriety merely because one individual misuses an idea, concept or even tool is to practice an ancient but deplorable practice. It is called predjudice.
A doctor who is guilty of malpractice does not make all doctors bad. A pilot who flies drunk does not make all pilots drunkards and so on.
What makes you any better than they in that case? Hatred is a concept that has been more in vogue in more locations than ever before and is now being used in the defense of idealism? "Political corectness is neither correct nor an advocacy of politic action. Look up the definition of politic. Those who attempt to decide for others how they should live their lives, make their choices for them or attempt to cudgel them into a way of life not of their choosing is guilty of being a petty despot. It is diametrically opposed to the concept of freedom of thought and action. Why is this now a liberal tactic?
Midnight, Reread your own post with that same concept you wrote. Then reread the two speeches listed above. Are you not also coloring them and not looking at them "critically"? I suggest to you that you have allowed your own concept of true "correct left thought" has deluded you from objectivity. Heston was espousing truly liberal ideas, such as individual freedom, responsibility for self and obligation to others. To me those are liberal ideas, not conservative.