This film is not perfect, it suffers from an identity crisis. It knows what its audience wants and tries to pander to them with typical nonsensical Bollywood masala while also trying to say something. This results in the ideas and themes of the movie being poorly delivered. Also it could have been shortened from a technical standpoint and the violence and obscenity could have been toned down to make it more welcoming to a larger audience.
Some of those who 'love' the movie seem to do so because of superficial reasons such as its action (which is nothing to write home about), violence, shock value, and the macho man schtick of the main character.
And a number of those who hate it seem to do so for the same reasons in addition to the alleged glorification of misogyny.
The common ground between both of these camps is that they both appear to have missed the intended point of the film entirely.
Vijay is not a hero or someone to be looked up to and idealized. He is a broken and deeply flawed man. All he ever really wanted was his father's love and attention.
His whole alpha male thing and his overbearing, overprotective, and obsessive behavior towards his family was just an overcompensation for something he lacked deep inside.
And realizing it or not, he was continuing the cycle by being an absent father and a bad example towards his own kids.
Even in life, neglected kids tend to be more mischievous because they're desperate to get their parents' attention by any means necessary.