Jinns are called "Genie" in English. (you know Aladin's Genie? well that is fantasy character but Genies are real in fact).
Jinns are the creation of Allah SWT. Jinns are made of fire while angels are made of light.
The most superior creation of Allah SWT is humans, then come angles and Jinns. Jinns also have religions, sects and tribes etc. There are Christian, Hindu and Muslim jinns.
The concepts of spirituality in Islam are so deep that the material world of the West cant even imagine, why? because to know something you have to study something, and to study something you have to dedicate a considerable amount of time. Better to learn Islam from Muslims and not AntiIslamic Websites.
Bye.
Trying to learn about a subject esoteric in nature is not easy thing to do.