I'm pretty sure the only "cultural protectionism" we Americans engage in is the inherent superiority of our culture /s
I guess there must be some reason why so much of your stuff is geoblocked so Canadians can't watch it (online, that is; many of your shows are simulcast with Canadian channels/networks so we get Canadian commercials rather than American ones).
For instance, it's getting incredibly annoying to watch the American version of Big Brother. Now they don't even finish the interview with the evictee on the regular channel; they just say, "go to cbs.com to see the rest of it" and don't give a damn that Canadians can't do that.
Oh, and Netflix? We get a small fraction of what's available in the U.S.
It seems fair to say less than 40% of the pop culture Canadians want to watch or listen to is Canadian.
I wouldn't know about percentages, but I think it might be a generational thing.
I grew up listening to CBC radio and getting my TV news from CBC. In the internet age, I get my news from cbc.ca, and am currently engaged in an argument related to the election that we're expecting to be called within the next week or so.
One would think that these factors would combine, even without any regulation, to give local production a strong edge.
Define "local". Decades ago Red Deer had our own TV station and a studio that produced its own news programs and other local productions. I remember how pleased my grandmother was back in the '80s, when I was involved in a theatre production of "The King and I." I inherited the position of head of the properties crew when the crew head abruptly handed me his clipboard, notes, and script one night at rehearsal, announced he was quitting, and said, "Have fun." So I had to scramble to find out what we still needed, and one of the items was a doll wearing a Scottish folk costume.
I realized that trying to find one commercially would take too much time and $$, so I raided my grandmother's doll collection for a doll that would pass. I did the doll's hair and asked my grandmother to please,
please, PLEASE make a costume for her (she had a pattern book of international costumes for dolls).
She agreed to do it and when it was done, I took the doll to the director and producer for their approval, and they were happy. That doll was one of the props that were brought to the local TV studio when they did a segment on our theatre production. My grandmother was on the proverbial "Cloud 9" to have something she had made featured on a TV show, however local it was. But we usually had a sell-out audience for our shows, so her work was seen on stage as well as on TV.
That's all gone now. We don't have any TV studios here anymore, and "local" news means having to go to the Edmonton or Calgary sections of the CBC website. Once in awhile they mention Red Deer, if something unusual happens or there's a big drug bust, or something.
"Raisins in the grape Kool-ade"... now that was funny. Reminds me of the time when my dad insisted that he had canned bananas in his shopping cart and wouldn't believe me when I told him it was really canned pineapple.