When the first chumra of tznius was introduced back in the days of Yoshiyahu, many people warned that this will cause Judaism to become very extreme, to the point that anyone who woman who doesn’t cover her hair will be considered a prutzah, and her husband can divorced her. This will wreck marriages, we were warned.
But it was decided to go ahead with the chumras anyways, because nobody in their right mind would take it so far as to force women to cover their hair.
The rest is history.
In 1,000 years, if you do not agree that the burka is Torah Misinai, you will be called an apikores.