Why Vidyasagar is attacked whenever groups struggle to make their point

It might not be known to many, but the statues of Ishwar Chandra Vidyasagar have been vandalised several times between episodes involving Naxalites in 1970s and the TMC-BJP struggle now

Ishwar Chandra Vidyasagar was an iconoclast. So, the spectre of breaking statues would have amused him more than disturb. That he has run up the dubious record for having his statues disfigured whenever there are talks of a change might not have surprised him, either.
 
He also had a wonderful sense of humour. At a gathering at the house of Bengal’s Lieutenant Governor, when he was asked why Bengali pundits did not wear a turban, he remarked they were lightening the load on their motherland, whom they had been unable to defend.
 
Thanks to his unorthodox beliefs, Vidyasagar