Vegan "activist" groups

caused serious disruption to transport and production in four states yesterday. They say they plan to go on protesting until their demands are met. 
The financial cost to others of their "demonstrations" was high. People were late for work. People could not get to work. People who were at work in the targeted production sites could not work. Police time was wasted  on removing and arresting people who were causing the disruptions. Court time will be wasted on prosecutions which will probably end up with a feather light slap on the wrist.  
Among their demands is that all children in school be required to view a film that conveys their message. I have not seen the film myself but I have been told by someone who has (and whom I trust to be fair and reasonable) that it is "completely unsuitable" to show to children. His view is based not on the bias, which is to be expected, but the subject matter and how it is conveyed. I did not question him further as to the content.
I don't believe any reasonable person would ever want to deliberately harm an animal in a way that prolongs suffering. The reality however is  that humans have eaten meat and consumed other animal products since the days in which they were hunter-gatherers. Activist groups like those involved in yesterday's protests are fighting against thousands of years of human activity based on their very survival.  
I have no problem with people wanting to be vegetarian. We eat very little meat in this household and I could happily go without but the Senior Cat likes a little now and then. He grew up that way so we have it. It is possible to be a healthy vegetarian, of course it is. Being vegan and being healthy is much more difficult. It requires a great deal of care. A doctor of my acquaintance has told me that she and her colleagues are seeing more and more diet-related issues - many of them related to uninformed veganism and other "diets" which promote imbalanced eating. 
Yesterday's protestors were trying to promote something which is potentially - if not actually - dangerous. Many people are not well informed about food. They may know the basics but it requires more than that to follow some of the "diets" which have been promoted of late.
Part of the problem of course is that we have too much food available to us and too much choice. People who are starving will take what food they can get. Religious dietary restrictions can be relaxed under certain conditions. But if food is plentiful then it is easy to suggest that certain things should not be eaten. 
By doing that the people who do this are seeking to control us. In the past it may have been simply for survival. Now it might be for health related reasons and their economic impact. But, it can also be for other financial and profit related purposes or political or religious reasons.
But yesterday's protestors were infringing the rights of others to travel and go about their legitimate and legal daily business without interference. That is simply wrong.
It won't win them the support they are seeking.