Back -I've told you what the media can do about it. Stop having him on TV and chose someone more representative - easy.
As for sharia law, just to be clear, this is the term covering all the rules of Islam, so when I pray five times a day, give bacon the swerve and don't play the lottery,I'm following sharia law.
However, I sense those aren't the sort of sharia laws you're on about.
Key point - as part of Sharia, you should respect the laws of the country you live in.
Criminal - there should be no alteration to UK law on grounds of sharia.
Financial - Islamic finance is a growing industry in the UK. The govt has had to put in place particular VAT and tax regs to ensure that products and profits are taxed appropriately. I see no problem with this. Just to add, that Islamic financial institutions in the UK are bound by the same regulatory bodies as conventional banks.
Family law - bigamy to remain illegal in the UK. There are opt-in Sharia family courts in the UK that mainly deal with divorces and family disputes ( Note: they do not have the power to overrule or contradict UK law and generally act as a mediation service or to administer religious divorces). I feel these need to be either properly regulated and monitored, by an independent and impartial body or closed down.
I think that sums up everything.