Islamophobia is a politically loaded term that was initially invented and promoted by left-wing and progressive activists to suppress, and if possible eradicate, criticism of Islam. An ideological tool of left-wing "political correctness", it is frequently used by members of academia, and may effectively enforce censorship by smearing critics with accusations of mental illness - or "phobia". It is modeled on terms such as "claustrophobia" and "hydrophobia", but unlike those terms it has no basis in clinical psychology. Often used as a term of vague insult, this has not diminished its cultural and political effectiveness, as measured by its increased use by mainstream conservatives, who in turn are derided as cuckservatives by those further to the right.
The term entered into common English usage in 1997 with the publication of a report by the Runnymede Trust condemning negative emotions such as fear, hatred, and dread directed at Islam or Muslims. While the term is now widely used, both the term itself and the underlying concept of Islamophobia have been heavily disputed.
The term Islamophobia is widely associated with accusations of racism, promulgating the fallacy that Islam is a race and that those who criticize it are motivated by racism. In fact some of the most vocal critics of Islam are ex-Muslims. Examples are Hamed Abdel-Samad, author of the book Islamic Fascism, and Ayaan Hirsi Ali, the Somali-born political activist and feminist. 
Feminists and left-wingers who wish to support ex-Muslims may find themselves in an ideological tangle, as they attempt to signal their own superiority to the right-wingers whose criticisms of Islam they insist are unlike theirs, based only on racist prejudice. Their distinction between valid and invalid criticisms of Islam have been said to boil down to "you are only allowed to criticize Islam if you denounce all religion and join the Communist party".
The supposed statistics on anti-Muslim attacks in the UK are generally derived from unreliable sources such as "Tell Mama", a call centre where anonymous people may lodge unsupported allegations, and accusations of anti-Muslim language are lodged as "hate-crimes".
False reports of anti-Muslim hate-crimes are rife in the mainstream media and on social media. Examples from 2017 include a bogus report of a hammer attack on Balsall Heath in Birmingham, which police investigated and found had never taken place. The images of victims were found to be deliberately faked. Police commented "“There are 2 images circulating of women who have been assaulted. One of the ladies in the red scarf is the victim of an assault however this has occurred in Ohio, USA. The other of a lady in a green scarf is not a victim of an assault but the work of a Malaysian make up artist for a production. We urge anyone to exercise caution when sharing news/images particularly on social media." 
In 2016, a Muslim woman in New York claimed that she had been attacked by three Donald Trump supporters who had pulled off her hijab and racially abused her. But it later turned out that she had invented the whole attack. "Yasmin Seweid claimed the men chanted "Donald Trump!" as they tried to rip off her hijab on a subway train, but police say she made the whole thing up." 
It is noticeable that, on numerous occasions, claims about anti-Muslim hate-crimes (that were later shown to be false) have followed quickly after genuine reports of Islamic terrorist attacks. This could be explained by the hypothesis that the false reports are meant to counter the impact of the news of the terrorist attack.
- Kelley Beaucar Vlahos | The American Conservative (Sep 11, 2014) http://www.theamericanconservative.com/articles/islamophobia-makes-a-comeback/ | also: http://www.huffingtonpost.ca/2017/03/22/m103-tories-recorded-vote-stand-five-islamophobia_n_15543914.html