You can’t carry a knife that opens quickly because it’s scary, and law makers don’t like scary things. Personally I’d rather just carry a regular knife with little or no moving parts, but a switch blade (or butterfly knife) ban is ridiculous.
There are many folding knives that open as fast as the evil switchblade. My EDC is a Kershaw Cryo. You can buy them at Walmart, even in NY. They only difference is you slide your finger over a lever built into the blade to activate the spring vs pushing a button to activate the spring.