Why is the Young America's Foundation (in particular its iconic people like Ben Shapiro, Matt Walsh, and Michael Knowles) talking about social issues all day long?

Just look at their YouTube channel...

During this second cold war time, I think there are many important topics that politicians could talk about, in particular those "defending America". On the rule of thumb: democracy, rule of law, economic liberalism, etc.
Why fixate on gender and sexuality like a mussel on a rock?

If we compare with another right-wing network, PragerU talks about a much broader range of topics.

I saw some discussions about the rise of Christian Nationalism in the U.S., does it have a relation with that, for instance?
I don't know if it's a general tendency in the U.S. right-wing these last 10 years or so.