In the UK it's codswallop....In March 2008, peers voted for the laws to be abandoned. On May 8, 2008, the Criminal Justice and Immigration Act 2008 abolished the common-law offences of blasphemy and blasphemous libel in England and Wales, with effect from 8 July 2008.
In Ireland, a bit rich, even though perspectives remain....In the Republic , blasphemy is required to be prohibited by Article 40.6.1.i. of the 1937 Constitution. The common law offence of blasphemous libel, applicable only to Christianity and last prosecuted in 1855, was ruled in 1999 to be incompatible with the Constitution's guarantee of religious equality.
The lacuna was filled in 2009 by a new offence of "publication or utterance of blasphemous matter", against any religion.
The continued existence of a blasphemy offence is indeed controversial, with proponents of freedom of speech and freedom of religion arguing it should be removed.
The government formed in 2016 is committed to holding a referendum on abolishing the constitutional offence, so this fracas all seems somewhat heavy-handed. Odd.