He’s from Greek mythology.
However, yes, he’s been commercialized as something he never was...
We have a fair number of pre-Christian traditions that have continued into our modern world (cupid, astrology, the Easter Bunny).
Not great, but all of them are minor threats compared to the overwhelming assault Christianity faces from modern secularism.
Roman - the child of Mercury and Venus - the Greek equivalent is Eros. What people often forget is that Cupid carries two sets of arrows - one of gold and one of lead. We all know what the golden arrows do - the lead ones achieve the opposite effect.