I have watched those videos ! And including the full the one of zakir naiks 'every muslim should be a terrorist' ! If you watched it fully he says every muslim should stand up for good and if a criminial sees him he should be 'terrorized' ! Digest the message implied !
I can also post videos of radicals from every religion and then you will say , well they are not following the religious teachings ! Same thins with those radicals in the 'edited' video ! With all the scary music and all ! Lame dude
Well yeah penalty of leaving islam is death but to leave islam you have accept it first ! You have to become muslime wholeheartedly by inspecting the quran and the studing the religion ! You have to become muslim first by yourself - not because it is culture or your parents are muslim - and then if you accept islam you are making a covenant/pact with God !
We say yes the price of breaking your pact with God is death,religion is not some cloth to wear it when you want and throw it when you dont want ! It is a pact you have to make with God and the price of leaving it is severe !
There is no compulsion to enter Islam ! You can enter if you want to or stay away if dont want ! People who become muslim know this rule , and still the most number of people are becoming muslims , and especially in the west !
) to give up their materialistic pleasures. It means that if you are not willing to let go of these pleasures, you should do so peacefully without harming anyone according to the Dhamma. 
