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From what I’ve read on the topic, this take seems misguided at best or outright wrong at worst. Historically, secularism in France has been a primarily liberal/socialist/anti-monarchist pursuit.
French secularism has its origin in the French revolution, half a century before Algeria came under French control. Religious institutions were viewed as a part of the aristocratic establishment and the concept of laïcité was introduced under the revolutionary era and entrenched (along with concepts such as freedoms of thought, expression & conscience) during the Napoleonic era. Further progress in this direction was not made by imperialists, but rather revolutionaries after bloody conflict (the French commune for instance) and generally steps were taken to repeal them when conservative/monarchist governments dominated.
I’m honestly not sure where I stand myself on this. It’s a difficult issue and I’m not sure there can be “only one correct answer”.
Who decides what is harmful or provocative?
A priest may find that the colander makes a mockery of religion, others might see a hijab as a symbol of oppression of women and others still may find that a certain slogan remind them of past trauma?
How do you strike a balance between dress code and preferences?
Should the state be free from religions, or free for all religions?
Does it even make sense to have the same rules in every country?
I myself am certainly biased in this context, given that I trust in science, evolution and the empiric process. Furthermore, I myself have been permanently negatively affected by religion, and all the ones I’ve encountered so far have been anti-scientific to a certain extent, regressive and denounce my own personal views. Does it not make sense then that I am anti-religious?
If I had to quickly codify my stance at this moment, I would say that I’m fine with freedom of religion to the extent that it intersects with the other personal liberties (Freedom of thought, expression, personal autonomy) that I think everyone should have the right to. However, I don’t think religion should give anyone preferential treatment in any context - religious organizations and religious folk should be subjected to the same regulations as a person of another (or no) belief or organization.
For instance, that might include exemptions from dress codes. In this case I would be against it unless the dress code would be equivalently relaxed for everyone, which I certainly wouldn’t support in some contexts. Some examples from healthcare for instance (since I’ve experience in the field) - it is imperative that what you wear is hygienic for the safety of the patient, and some of your duties might go against the personal beliefs of some people (abortion for instance). That doesn’t mean that you should be exempt from those duties or regulations because of your personal convictions. Suck it up, or go find another job.