It's because you haven't had a math teacher who cared enough to teach you math. They've probably been teaching you to memorize formulas and to be good at math tests instead.
… we need to get focused and demanding and relentless in getting good at math, at getting our kids good at math ...It's nothing I could add. Oh wait, only one thing: "getting our kids good at math and programming". Early. Kids are thinking antidisciplinary … they want answers and they are good in organizing to get them. Let them explore and construct things (computationally).