"Significant" yes, "numerous" probably not: Richer people with personal interest in upholding IP rights, or who are generally approving of the legal status quo.
Although, on second thought - a lot of people who are not tech-savvy might be convinced by the mainstream media view on file sharing as involving a lot of "piracy" and theft, so maybe that demographic has more opponents of P2P.
Although, on second thought - a lot of people who are not tech-savvy might be convinced by the mainstream media view on file sharing as involving a lot of "piracy" and theft, so maybe that demographic has more opponents of P2P.