Pretty sure he said his sources were from the Pew research center. Haven't seen that video in a while but I remember him outright saying the source. Also that podcast in general is complete cancer if you've ever seen their other episodes.
he said some population statistics were from pew
when calculating how many people were radicalized in indonesia he used a random ass poll he found from god knows where which basically says 50% of muslims are radical. he applies this 50% to the /entirety/ of a country (indonesia) and asserts 143 million people are radicalized which is hilariously wrong why would anyone take some random ass poll and apply it to an entire country's muslim population. that's inaccurate as forget
he does this to some other countries as well, claiming that based on another random ass poll (again no source for this) that many more muslims are radical.
as far as i can tell this entire video is him doing this bullstuff over and over and over and over again. none of this stuff has any sources the only source mentioned in the video is a pew statistic for a country's muslim population
and since i watched your video you can read the article i found here
http://www.politifact.com/punditfact/statements/2014/nov/05/ben-shapiro/shapiro-says-majority-muslims-are-radicals/it restates everything i just said and i cannot loving believe i just only found it at the end of writing this bullstuff i could've just linked this instead of actually putting effort into my argument
my point with the book video is that this guy seems so inept at doing basic stuff like creating a character that is not so loving generic and seems to be so fixated on how horrible obama and the left is that i cannot take anything that he says seriously. and it looks like my initial assumption of him based off the book video was correct - he can't be trusted because he seems like he'd pull some bullstuff to fearmonger and get people riled up about his cause.