If someone wants to donate his money for the temple it is his choice, his belief and no boday has any right to make any comments against any person's legal wish.

Lot of folks, who gave up their being nepalipan, culturally and socially, would never understand the long term cultural significance of such works. Just for example,  to cater your small needs,   if your relatives want to get married tomorrow they wont have to knock on temples build by good folks from our neighboring country. If you do not understand lot about culture and its social significance, learn from your neighbors- how they established themselves here, socially, culturally and economically. Your kids probably do not know where nepal is but their kids know where their parents came from.

Understand, if a person can donate huge amount to such religious cause, he would definately would have donated many for philanthropic purpose, even he did not , one should refrain from making negetive comments against this particular individuals.