Most of us are not blessed with a choice of soil. We're stuck with what we've got. And it seems like wherever I move, I get stuck with clay. By comparison to the clay in my old garden, the soil at my home now seems almost ideal. But it's clay nonetheless, and I've had to work diligently to upgrade the soil.
Not that the soil isn't perfect (to be ecologically correct) for its intended use. My part of the county isn't called the Big Woods without reason, and the clay soil in my back yard will grow some awesome oak, maple, poplar, and hickory, without special treatment of any kind. But try to kick a spade into the ground, and you're asking for a sprained knee.
If you face a similar problem, don't fret. Whether your soil has more or less clay than mine, so long as you understand what you're working with and keep at it over the years, adding organic matter and treating the soil structure right, you can get the better of clay soils and enjoy a productive kitchen garden.