The problem, Sharp, is that Prager's list is a willful strawman, carefully crafted as an attack to drive people away from the word "liberal".
Look at it this way.
Imagine, if you will, that a proselytizing atheist were to post "Randi's list of questions to see if you're a real Christian", and it had things on it like:
4. Do you believe that gay people should be summarily executed by anyone who discovers them?
and
18. Do you believe that God loves you, but hates most people?
...
Would you, at some point, say "hang on, this is not a true description of Christianity, this is a straw man", and choose to act to reassert your claim on the term, rather than shuffling away saying "I guess I was never a real Christian, because I can't hold with most of that stuff"?
We are the real liberals. You can tell 'cuz people hate us for being liberal, and you can tell because we match up nicely with real live dictionary definitions. We hang out with sinners, we listen to music that many people think is unacceptable... And we praise God with everything we do, all the time.
So... Prager is about as qualified to tell me what a "real" liberal is as Roz was to tell us all what a "real" Conservative is. Did you know that, if you don't support removing all workplace protections in the aim of increasing profit for CEOs, you're not a "real" conservative? I didn't either, and I've been told, and I still don't know it, 'cuz it ain't so.
Also, be aware of the distinction between a liberal approach to disagreement, and liberal positions. Many liberals hold conservative positions. There are a number of points on which my personal moral standards are much, much, much stricter than those of the majority of the conservatives I've ever met; it's just that, unlike them, I don't think it's my job to convict people in their sins.