Save The Constitution march vs BJP

Constitution of India , suddenly seems to be in a great danger. The entire spectrum of opposition leaders came together in its rescue in mumbai with "Save The Constitution" march on friday 26th jan 2018, the same day when it came into effect in 1950 .

Sharad Pawar (NCP chief),  Sitaram Yechury (CPI-M), r Sharad Yadav (JD-U), CPI's D Raja, Patidar leader Hardik Patel,  Dinesh Trivedi (Trinamool Congress ),  Omar Abdullah (National Conference leader ) and senior Congress leader Sushilkumar Shinde, Alpesh thakor , Hardik Patel among others attended the opposition's march.

As per Sharad yadav(JD-U) : Current situation is worse than emergency. The government has been acting against the interests of the farmers, youths, and children. Children are attacked because someone doesn't like a movie. This is lawlessness and this has dented the image of the country in the international forum. On one side, PM talks of red carpet, on the other side, goons who have State support burn public property and threaten law and order situation, as told to CNN-News 18.

Where as Mahatma gandhi's great grand son Tushar gandhi believes RSS-BJP together is doing everything to destroy the fabric of constitution.

Why suddenly everything seems to be unconstitutional , Are they really worried about the jobless youth or farmers committing suicide or the childrens being attacked by those who doesn't like the movie ? Are they genuinely concerned about law and order ? is it the first time that a group of people are against the movie ? Or there haven't been any incident of public disorder , riots and law and order issues in past ?

Why all the parties today looks helpless against BJP especially PM Narendra modi ?
Is it because Modi has peoples mandate over these parties or he is getting fame internationally . wait is it because Modi has managed to bank upon hindu vote bank which used to be scattered in pockets of caste during Congress government which had mastery over minority vote bank .

Modi carved his own niche in indian politics with tag line "sab ka saath sabka vikas" where he talks of development , Nationalism foreign relations while has a strong hold on Hindu voters who once were not seen as bankable votes . in short opposition parties are left with nothing to pick and cash on.