First a British judge, then dedicated educationalists running a British college have been defeated by the aggressive guerrilla army of Muslim Salafists and their misguided allies. At Blackfriars Crown Court, Judge Peter Murphy ordered a 21-year-old, veiled defendant to show her face. The accused had been charged with witness intimidation and pleaded not guilty. Whatever the results of that case, she and her supporters certainly intimidated the judge, who backed down so the trial could proceed.

Birmingham Metropolitan College was similarly cowed and had to reverse a directive forbidding students from covering their faces. One hooded lady crowdsourced a protest against the college. Some overexcited student union members, Muslim objectors and online petitioners have forced a U-turn. Shabana Mahmood, MP for Ladywood, Birmingham, welcomed the capitulation. Happy days. Muslim women can now to go to courts and college in shrouds.

That all-covering gown, that headscarf, that face mask – all affirm and reinforce the belief that women are a hazard to men and society. These are unacceptable, iniquitous values, enforced violently by Taliban, Saudi and Iranian oppressors. They have no place in our country. So why are so many British females sending out those messages about themselves?

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Some think they are outsmarting anxious Western institutions by covering up, winning dispiriting culture wars which will give them no advantage in our fast moving world. Young women in niqabs are either testing the state as teenagers do their parents or think their garb is political action – but for what? Many women, mothers in particular, have been brainwashed by proselytisers who want to spread conservative Islamic worship across Europe and North America. They are well funded by sources based in Saudi Arabia and the Gulf states.

And then there are those vacuous females who argue that it is their right to be objectified, that they must be allowed to live as invisible creatures. I don’t know which of these dubious forces prevailed in the examples above. But I do know that this trend is growing fast and cannot just be “tolerated” as a minority tendency, just one of many choices people make.

Toleration is good but not when it prevents fair interrogation and robust argument. I have written hundreds of times about the prejudices and discrimination experienced by Muslims, and other minorities. It isn’t easy being a Muslim anywhere in the world – not in Muslim lands or the West. But when Muslims wilfully create problems and build barriers, anti-racists and egalitarians have an absolute duty to engage with them critically and in good faith. I know frank engagement is avoided because it gives succour to the EDL, BNP, neocons and manic anti-Muslim atheists. I, too, have to think hard before penning columns like this one. In the end though, I don’t think we should abdicate these grave responsibilities because so much is at stake.

The woman before the judge must know that she or others like her will never be judges or barristers. Will she make her daughters do the same? The system wasn’t picking on her – a defendant in a micro mini would have caused as much disquiet. And the aggrieved college student, what future does she imagine? She denies herself jobs for the sake of what? They keep apart from fellow Britons by withholding proper human interactions. It’s not right or fair.

None of our sacred texts command us to cover our faces. Some branches of Islam do not even require head coverings. These are manmade injunctions followed by unquestioning women. We are directed always to accept the rules of the countries we live in and their institutions, as long as they are reasonable. For security, justice, travel, education and health identification is vital. Why should these women be exempt? We Muslims are already unfairly thought of as the enemy within. Niqabs make us appear more alien, more dangerous and suspicious. If it is a provocation for Ku Klux Klan to cover up so they can’t be recognised, it is for Muslims too.

This is a struggle between the light of the faith and dark forces here and also in Islamic countries. The clothes symbolize an attempted takeover of the religion just when believers are looking for liberty, autonomy, democracy and gender equality. Malala Yousafzai doesn’t hide her determined face. Nor do our female Muslim MPs and peers or civil rights lawyers.

Some of the bravest human rights activists are Muslim women. Take Tamsila Tauquir awarded an MBE for her charitable work with Muslims and Tehmina Kazi, director of British Muslims for Secular Democracy, which I co-founded seven years ago. The two of them, with other idealists, have embarked on an “inclusive mosque” initiative, with pop-up prayers in various venues, where men and women, gays and straights, humanists and modernists can pray together. Many others are trying to promote progressive Islam, which fits our times and needs.

Islamic zealots must fear these developments and want to crush them. Whether they know it or not, fully veiled women are part of this reactionary mission. Our state must not aid and abet them. The judge and the college should not have retreated and handed them this victory.