1.It creates a divide between a nation.
2.it breaks the unity among people.
3.Some ideologies may be wrong or harmful for a nation but still, people follow them to prove others wrong.
4.It creates a sensation for minor people that they will be exploited.
there are only four in my notes but you will get a fair idea from above to write the fifth one.
Sorry!Hope this was helpful to you/
Hope i am marked the brainiest!