Who told you that God designed the Jinns only for the purpose of misleading humans ?
Do you have a verse or any proof for it ?
I don't know much about Jinns, but if this is at all accurate:
"
Jinn,
jann or
djinn (singular:
jinnī,
djinni, or
genie;
Arabic: الجن
al-jinn, singular الجني
al-jinnī) are
supernatural creatures in
Islamic mythology as well as pre-Islamic
Arabian mythology. They are mentioned frequently in the
Quran (the 72nd
sura is titled
Sūrat al-Jinn) and other Islamic texts and inhabit an unseen world called
Djinnestan,
another universe beyond the known universe. The Quran says that the
jinn are made of a smokeless and "scorching fire",
[1] but are also physical in nature, being able to interact in a tactile manner with people and objects and likewise be acted upon. The
jinn, humans, and
angels make up the three known
sapient creations of
God. Like human beings, the
jinn can be good, evil, or neutrally benevolent and hence have
free will like humans and unlike angels.
[2] The
shaytan jinn are the analogue of
demons in Christian tradition, but the
jinn are not angels and the Quran draws a clear distinction between the two creations. The Quran states in
surat Al-Kahf (The Cave),
Ayah 50,
[3] that
Iblis (Azazel) is one of the
jinn...
In
Islamic theology jinn are said to be creatures with
free will, made from smokeless fire by
Allah as humans were made of clay, among other things.
[6] According to the
Quran, jinn have free will, and
Iblīs abused this freedom in front of Allah by refusing to bow to
Adam when Allah ordered angels and jinn to do so. For disobeying Allah, Iblīs was expelled from Paradise and called "
Shayṭān" (Satan). Jinn are frequently mentioned in the
Quran:
Surah 72 (named
Sūrat al-Jinn) is named after the jinn, and has a passage about them. Another surah (
Sūrat al-Nās) mentions jinn in the last verse.
[7] The Qurʾan also mentions that
Muhammad was sent as a
prophet to both "humanity and the jinn", and that prophets and
messengers were sent to both communities.
[8][9]
They are usually invisible to humans, but humans do appear clearly to jinn, as they can possess them. Jinn have the power to travel large distances at extreme speeds and are thought to live in remote areas, mountains, seas, trees, and the air, in their own communities. Like humans, jinn will also be judged on the
Day of Judgment and will be sent to
Paradise or
Hell according to their deeds.
[10]"
https://en.wikipedia.org/wiki/Jinn
Then, I'm not making the case God make Jinns only for the purpose of misleading humans. He may have made them for a multiple purposes. But at the end of the day, the Jinns were cast out, and some do evil, and some do good, by exercising their free will, in accords to God's design, and from that, some of the Jinn apparently cause the starvation of millions of humans, also in accords with God's design.
Is this inaccurate?