New York State is at least 10% Jewish. Jewish people in NYS lobbied the state government to have Jewish holidays recognized.
I'm guessing NYS is maybe 2% Chinese. From the responses on this thread, and from my own experiences living in New York, nobody else gives a sh|t about Chinese New Years. You can feel free to lobby the state government, but they will probably laugh at you.
If you dislike it so much, you can always go back to China.
The government always adds new holidays, but you never hear about them repealing old ones. The federal government does not want to add any more national holidays (especially ones that so few people care about). There are too many national holidays as it is, and it is increasing the cost of doing business, particularly in the public sector where everyone gets a day off.