Expecting to understand particle physics all over without spending years and learning all the math you need is naive, and you shouldn't blame physicist. Nobody can make nature or maths easier for you, it's just how things are.
I honestly don't know how to explain nature without the gritty math. Apparently, maths is the language nature can be understood. I don't know how I can seriously explain how electricity, magnetism, weak and strong forces work, and how they are intricately related without going into gauge fields, relativity, Lie-group symmetries, quantum fields and partial differential equations, infinite path integrals or operator algebras for example. I can't even explain a fundamental thing like what a boson or fermion is properly without a background in field theory, let alone go into anyons, or how they might be related by a deeper symmetry of nature called supersymmetry.
It's not like pulleys and levers that you can infer from your daily experience and hope to understand it more or less by the time you finish your cup of coffee.
There are books and talks for layman on technical matters in physics. Apparently, that's not what Wikipedia is aiming for.
Physics and mathematics have a long history, and isn't easy. The learning curve in today's theoretical physics is quite high. Stuff not meant for layman is naturally not accessible to layman at all.
And as others pointed out, no, Einstein didn't say anything like that. He said "Everything should be made as simple as possible, but no simpler." though.