Not yet. They are a relatively small percentage of the population.
The real issue is government enforced political correctness which upholds their “rights” over that of the native population. IF the UKIP can gain power, or at least force the government to right, this issue might disappear.
For those who don’t know...
In 2011, Muslims were 4.8% of British Population (About 2.9 Million ). That’s up from 3% of the population in 2001.
There are about 1,500 registered mosques in the UK and about 1,900 worshipers per mosque.
See here:
http://www.brin.ac.uk/news/2010/how-many-muslims/
I heard a fellow from UKIP on TV saying that muslims make up 5% of the population but own outright 48% of the FTSE (stock market) control all British Ports, control over 50% of Britain's food supply and many communications outlets. Pretty scary stuff if you ask me. They control the banks, ports and private industry...what's left?