Those men in the film are serious about being Muslim, aren't they
Indeed they are.
That clip from the film was unsettling. Want something even more unsettling? Across much of the Western world, it is liberal, left-leaning women who are among the strongest supporters of Muslim immigration - who welcomed the so-called "refugees" in Germany and elsewhere, and who regularly vote parties into power that promote mass immigration. To be fair, women on average tend to be more supportive of immigration than men, and left-leaning men are hardly innocent either. We could already observe the effects of their idiocy all over the West and with time - as Muslims are the ones who consistently have the most babies - scenes similar to the one from your clip will take place also in Europe.
You could argue that Islam will rule the world anyway (Mathematics 101), but why speed up the process? Why do liberal women (mostly, but also men) are so supportive of bringing in people who despise them and - eventually - want to enslave them? Try as I might, I cannot comprehend this. It is probably this incomprehension, and frustration with watching the dying out of native western populations, that drives some men in the West to consider some sort of systemic countermeasures against what they rightly perceive as a mortal danger.
Of course, talking about taking the right to vote away from women, or leftist-leaning men for that matter, is nonsense and it makes us similar to the Muslim extremists that we despise.
Unsolvable riddle: give women all the freedom they want and watch the civilisation collapse or enslave them like Muslims and become what we despise.
Or maybe it's just the way it is... every great civilisation eventually collapses when traditional religious and family values collapse, so maybe it's our turn and we should just accept it?
Ah, well... everything's in the hands of God anyway.