Who has seen and know that understand very well but some ppl are so blind about reality.
Islam doesn't teach us to disrespect Kaafirs.
We are forbidden from adopting Kafir (Rejector i.e. Non-Muslim) religious practices and leaving our own religious practices to please them but that doesn't mean we should not respect them as fellow humanbeings.
They might not be our brethren in Faith but they are in Humanity, we are all the children of Baba Adam and Amma Eve.
Once our Prophet (S) was sat with his disciples and a funeral procession passed them, the Prophet (S) stood up out of respect, his disciples said "O Allah's Apostle! This is the funeral procession of a Jew" to which the Prophet (S) replied "Is it not a living being (soul)?", this is the best of mankind, the leader and high-priest of all of God's Prophets and Messengers (A), the jewel in the crown of creation standing up in respect of a Kafir, then who the hell are you and me to think it below us to respect the Kuffaar (Rejectors, Non-Muslims)???
Our Prophet Muhammed (S) the White Cloud of Mercy was even merciful to the Kafir youth who stoned him tills his shoes were overflowing with his blood, he even tended to the sick old woman who during her healthy days would throw garbage on him daily.
When the early Muslims embraced Islam the Prophet (S) didn't tell them to severe ties with their relatives, instead he ordered them to fulfill their duties to their Kafir parents and obey them except when they command disobedience to Islam.
Islam allows us to marry women from the Ahl Al-Kitab (People of the Scripture) who are Kafir (Non-Muslim), a Muslim husband is even required by his religion to allow them freedom of religion, if Islam required us to be snooty towards the Kuffaar would it allow a relation as intimate as that of a wife and mother to be Kaafir (non-Muslim)?
The Prophet (S) said "he who hurts a dhimmi (non-Muslim citizen of Muslimland) hurts me", so when you hurt a Non-Muslim living in a Muslim country you are hurting your own Prophet Muhammed (S).
The Holy Koran teaches us "what goes round comes round" by forbidding us from cursing the false deities of non-Muslims because in turn they will curse our Deity God/Allah.
Islam requires us to respect Kafirs as fellow humanbeings and deal justly and kindly with them if they do not fight Muslims or Islam.
The only thing Islam forbids is to take Kafirs as 'Awliya over Allah, The Prophet (S) and the Muslims for example in the context of war (e.g. a Muslim in the Indian Army bombing Kashmir) or a Muslim spying on the Muslim goverment for outsiders or a Muslim funding Non-Muslim missionaries against Islam, or a Muslim abandoning and trashing an Islamic practice because his non-Muslim friend doesn't like it (e.g. prayer or beard).
Some misguided people preach a horrible ideology in the name of Islam, they twist out of context Islamic texts, they are actually agents disguised behind masks of piety who want to destroy Islam.
Islam is a very beautiful and balanced religion.