If he had never seen "Hamilton" and never had any plans to then how could he say he didn't like it?
He probably means hitting the “Like” button on Facebook or wherever?
How could he say “not liking it”.
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I like the way you think.
I interpreted this headline in a social media sense. To “like” means to symbolically click the “like button” and in any other way to join in the social media enthusiasm. True he couldn’t dislike the show, he never saw it, but he had no interest in ever seeing it or “liking” it in any way. This is “not liking” it. Now he has determined to see it and he may still not like it and he may also geuinely dislike it.
I don’t know if I am right about this and I would never ever ever say how the language ought to be used, I merely observe and report. However, it is truly frightening that in the modern age, among the young people, one can be castigated for not sufficiently “liking” some politically correct idea!