Nothing. they worship a god that is deceptive and wants his own creatures dead, or subjugated to sharia laws - the worst human rights disasters of all times.
They worship an Adulterer, Bandit, Immoral, Inhuman, Looter, Lecher, Misogynist, Murderer, Materialistic, assasin,
Narcissist, Pedophile, Raider, Rapist, Slavetrader, Sexmaniac, Terrorist, Torturer, Vengeful Warlord.
And they distort his deeds into an aura of goodness/holiness.
They have no concept of ‘human beings’ - only believers/unbelievers and they also divide our world into the realm of war (dar al harb) and the realm of islam (dar al islam) which basically means they are at war with us.
Their koran is full of violence and commands to commit violence against the unbelievers and that includes torture, enslavement and killing.
Slavery is still in the islamic world, as is abuse against women.
The single minded denial of all of this is just mind boggling and people take their FACADE of peacefulness as something good. While they support such terrorists as hamas who are currently lobbing bombs into Israel again - and so the ‘peaceful’ ones are all happy and not making a peep out of that.
Their redefinitions of words, and also sin, gives them the excuse to commit all these atrocities, including lying about what islam is all about and what it means for us - death, conversion or subjugation.