A "Friendly neighborhood Spiderman" seems to be a recurring theme in the movies. If Kingpin is a mob boss, they would inevitably cross paths.
Kraven is good onto his own in the comics, but...and it's been awhile since I've read anything in the comics, but I don't think his menace "alone" translates well to the movie screen.
And for that matter, neither does Kingpin...but both...
I simply thought a team up or a partnership would be epic for a Spiderman movie.
I feel that. But these movies all operate on a cause and effect. The avengers happened (cause) vulture was the effect. Tony’s actions caused Mysterio. So now that peter is a wanted criminal and his ID is out to the world, what’s the effect? Kingpin has no need to go after him because he hasn’t messed with anything kingpin has done. He’s spent most of his time dealing with big time threats: Thanos, the civil war, Mysterio. Vulture is the only thing he did in New York. Kingpin is the type to only get involved with you when you involve yourself with him. He doesn’t draw attention to himself.