Labor Day and Rosh Hashanah are both in September. Have you attended "Holiday Parties" in that month too?
Here's ther difference: In Judaism, our holidays are actually religious. Jews go to shul for most of the day on Rosh Hashanah. Even liberal Jews actually show up. And BTW, we do refer to Rosh Hashanah and Yom Kippur as "the High Holy Days" or "the High Holidays".
In the push to sell more, marketers have Chanukah into something it never was. Chanukah is a military voctory. It's nowhere near as important as Pesach, Succot, Shavuot, etc.
And to millions upon millions of Americans Christmas is a Holy Day as well. The federal government deemed that fact SO important that it officially recognized Christmas as worthy of designation as a holiday for ALL Americans.
Huh?
The celebration of the birth of Christ is not religious?