These things also bother me. I am not against any culture. If I were in Saudi Arab I would have definitely celebrate Eid.
Since I live in US I do celebrate my way (Nepali style) Christmas and Thanks Giving.
Since last decade Nepalese culture has changed dramatically in Nepal. Nepalese especially ‘Pahadis’ have adopted ‘Madhesi’ and Indian cultures. But I don’t see other way around.
I am from Terai. My Teraian friends ‘Madhesis’ don’t celebrate Nepal’s biggest festival ‘Dashain’, they do, but as ‘Dasahara’. They don’t put Ratotika, no Khasi ko masu……etc.
Madhesi group also don’t do ‘Bhai Tika’ but our ‘Pahadi’ groups do ‘Rakhi’ Now it spread from Terai to Kathmandu.
Now Kathmanduties celebrate ‘Chaat’. ‘Chaat’ was not known in Ktm little more than a decade ago, same thing to ‘Bole Bom’.
The point is why we changing our own (distinct) culture to Indian culture. Can’t we celebrate ‘Mah’ puja (Newari) and other ethnic groups Rai, Limbu, Gurung’s culture and festivals instead?