According to some of the people from Virat Kohli fanbase:

1. Dhoni and Rohit always had 0 contributions in winning the trophies for their respective teams

2. Rohit is a vadapav and Dhoni is a test T20 player

3. Sachin was a statpadder and a choker

4. Some of them even say that Viv Richards is better than Sachin Tendulkar

5. Rohit is a flat track bully, even though he has scored 100s on challenging conditions

6. They call Rohit as a choker, even though he has 2 100s in the ICC Knockouts

7. They say that Dhoni has no overseas 100, but he has won so many Man of the Series awards, and some of his innings are even more important than the 100s

8. They even compare Rishabh Pant with MS Dhoni, this makes people from the Dhoni fanbase hate him

There are many other illogical statements from VK fanbase, but these are the main reasons, so wouldn't like to mention them