Shaykh Yasir Qadhi is about celebrations and imitating the Kuffar. Some celebrations are prohibited by the scholars because of the imitation of the Kuffar.
What does Eid mean? Shaykh Yasir answers.What is the verdict of the scholars on celebrating festivals other than the two Eids?there are two opinions.
Any festival celebrated other than Eid ul Fitr and Eid al Adha is linked to Bidah which is nonsensical.
It is imitating the Kuffar.
The Messenger of Allah ﷺ said, “Whoever imitates a people is one of them.”
Abdullaah ibn Umar RA that the Messenger of Allah ﷺ said: "Differentiate yourself from the Mushrikeen: trim the moustache and let the beard grow."
The above is one of the many Hadith that makes it clear to not imitate the Kuffar.
Sometimes Tashabbah becomes Mubah or Mustahab or even Wajib at times qs narrated by Ibn Taymiyyah in his book relating the same topic. A few examples are shared and we are able to comprehend it in a better manner.