Its so easy to take masts down these days...why not do it?
After tying down, turn the mast 90 degrees and secure it that way: CHances of capsize sideways are less if the skinny cross-section is presented to the wind than the broad side of a wingmast.
This way the boat might get lifted on its long axis but much less likely.
Other sand-dwellers bury two 4 foot 2x4s instead of cheap Chinese dog anchors meant for nothing more than a somewhat active Chihuahua.