Bid’ah is innovation, which is unacceptable because “this day I have perfected your religion for you” (Qur’an 5:3).
And the West should not be imitated; only Muhammad, the “excellent example” for all Muslims (cf. Qur’an 33:21), should be imitated. And he gave no Valentines, especially to the kuffar: “Muhammad is the apostle of Allah. Those who follow him are merciful to one another, harsh to the disbelievers (Qur’an 48:29).
This view, of course, is widespread among Muslims.
“Allah did not create man so that he could have fun. The aim of creation was for mankind to be put to the test through hardship and prayer. An Islamic regime must be serious in every field. There are no jokes in Islam. There is no humor in Islam. There is no fun in Islam. There can be no fun and joy in whatever is serious.” — Ayatollah Khomeini
The survey is here.
Oh, and Happy Valentine’s Day. Kiss the one you love.