Can anyone prove or disprove that the US/Canada border needs more security?

So Trump and the rest of his party won’t stop going on about the border with Canada.

Tonight I heard on the CBC that they want to stop the flow on Fentanyl, but I’ve mostly heard about immigration.

Some of my family believe the claims that people are illegally crossing the border into the US from Canada and I think that sounds like the biggest load of horse crap ever. Mainly because “why the hell would you cross into the US when you’re already in Canada?”.

I’ve read a few articles about illegal border crossing from CAD, but does anyone have any concrete data that this is a serious issue?

Thanks!

P.S: Please keep this civil and logical.