what are the drawbavk of majoritatilsm
Imposing the will of majority community over others may look like an attractive option in the short run, but in the long run it undermines the unity of the nation
Majoritariansm leads to oppresion of minority groups which leads to civil war.
The Tyranny of majority is not just oppresive for the minority, it often brings ruin to the majority as well.
In the case of Sri Lanka, the distrust between the two communities turned into a widespread conflict. It soon turned into a civil war.