Hell or Heaven. This is the thought which do come into every normal human mind. To give a logical answer lets divide this question into three parts.
a) Are human even capable of performing enough right deeds compared to our bad deeds to achieve Jannat?
b) Can we figure out who are Non-Believer?
c) Who is going to Jannah?
A) Let’s first examine what are the right deeds. Right deeds may include being honest, modest, not being unethical, rude, back bitter, racist, then being respectful towards women, kids, parents, sibling and etc. These are some of those responsibilities which we have towards human and society. Then we have to perform those right deeds which we have towards our God. Different religion have different rights towards their God and amongst them different people with different ideologies have different responsibilities towards their God. According to my opinion humanly it is not possible to evaluate which person is fulfilling his/her responsibly towards God. So this what only God can judge. What we can highlight is that that amount of blessing God has already given to us i.e Our healthy, Senses, normal mind and etc. I believe these are blessing of Allah has already bestowed upon us which we might return HIM by performing right deeds. If we think we can give calculation of our right and wrong deeds to God then we are mistakenly.
B) In today's world where Muslims, Jews and Christian are divided into different religion who are further divider into sub religion but still ever religion and sect consider only himself to me in Jannah. According to very basic Muslim’s definition anyone who don’t believe in Allah and Last Prophet is not Muslim. However for shia Muslim Wailyat-e-Ali is wajib.
But there should come a question, without following the orders of Allah and Last Prophets is he/she still going to be call Muslim? Prophet said: Out of 73 only 1 will go to Jannah and 72 will go to Hell. So having this hadith in view, I believe Just reciting Kamla is not even enough. A person reciting Kamla can also go to Hell, which is for Dis-believer. Having said this, I believe no one has the right to say who is disbeliever or who is not, this is Allah is doing to decided. It’s better to find Perfect path and Follow it rather than worrying about people who are on wrong track.
C) So if people with right deeds can’t go in Jannah. And people with Kamla is not going to Jannah. Then who is going to Jannah? Jannah is only for the people with right beliefs and right deeds. They are very few. This is why Prophet said: out of 100 people 99 will go to hell.
Rest Allah knows the best.