The two women who damaged the case the Magna Carta was stored in (not the Magna Carta itself) are a vicar and a retired teacher. Their case comes to court in January by the way.
The only person who has tried to destroy the Magna Carta was King John and that didn't end well for him.
You are wrong about the complete erasing of Easter at Eastleigh School. A bonnet parade was cancelled but the intention was always to maintain some Easter celebrations. https://www.bbc.co.uk/news/articles/c0mwd083l4lo
I'm not sure you understand what anarchy is. It's the organization of society on the basis of voluntary cooperation, without political institutions or hierarchical government. The people above (possibly with the exception of King John) are ordinary people operating within our established society (two in government funded roles) and are either protesting on individual subjects or merely her job within the guidelines set down by government bodies. They're not anarchists and nor are they asking for anarchy.
Also, for your information, no councils have banned Nativity plays except due to Covid restrictions.
You might do well to look at how the changes Trump has made contravene key tenets of the Magna Carta and the constitution of the United States.
I'm thinking particularly, but not exclusively of the detaining immigrants and this section of the Magna Carta “No free man shall be seized or imprisoned, or stripped of his rights or possessions, or outlawed or exiled, or deprived of his standing in any other way, nor will we [King John] proceed with force against him, or send others to do so, except by the lawful judgement of his equals or by the law of the land.”