Can Muslims wish Christians Merry Christmas

To wish the non-Muslims with Merry Christmas or any of their religious festivals is haraam (forbidden), by consensus of the
ulama (ijma’), as Ibn al-Qayyim, may God have mercy on him, said:
{Congratulating the kuffaar on the rituals that belong only to them is haraam by consensus, as is congratulating them on
their festivals and fasts by saying “A happy festival to you” or “May you enjoy your festival”, and so on. If the one who says
this has been saved from kufr, it is still forbidden. It is like congratulating someone for prostrating to the cross, or even
worse than that. It is as great a sin as congratulating someone for drinking wine, or murdering someone, or having illicit
sexual relations, and so on.}
Many of those who have no respect for their religion fall into this error; they do not realize the offensiveness of their actions.
Whoever congratulates a person for his disobedience or bid’ah or kufr exposes himself to the wrath and anger of God. If they
greet us on the occasion of their festivals, we should not respond, because these are not our festivals, and because they are
not festivals which are acceptable to God. These festivals are innovations in their religions, and even those which may have
been prescribed formerly have been abrogated by the religion of Islam, with which God sent Muhammad (pbuh) to the whole
of mankind.
Also, the sayings of the Prophet (pbuh) shows that we should not imitate non-Muslims:
{Whoever imitates a nation is one of them.} [Sunan Abu Dawood: Hadith-3512]
{The final hour will not come until my followers copy the deeds of the previous nations and follow them very closely, span by
span, and cubit by cubit.} [Sahih Al Bukhari]