As I have said for years here on FR, I distinguish between Leftists and Liberals.
Liberals can often be talked to, most of them are just out of touch, depending on emotion, and either are being mal-informed or simply don’t have the time to educate themselves. I can and do occasionally talk to these people, and get a response like “You sound like you have thought it out...”
Bottom line, not all Liberals are lost.
Leftists cannot be talked to, they must be ridiculed and discounted where possible, and fought like deadly enemies wherever force can be brought to bear on them.
Barring a personal trauma (such as what happened to David Horowitz) there is no hope for them.
It is an important distinction. And I think it pays to remember that our opponents did the same back in the 1960s. The Student Left did not like Liberals. People like LBJ, Hubert Humphrey and other "nice" Liberals were their enemy. The Liberals supported American values and tried to work within the system. The Left wanted nothing to do with that. The Left wanted to burn everything down. They still do.
My feeling is that there are still some Liberals out there today -- but their numbers have dwindled. We are surrounded by dangerous Leftists and I won't talk with Leftists. If I actually encounter a Liberal, I would consider having a conversation.
What happened to David Horowitz?