Actually does have some ICO is a scam, but I don't think all the ICO should be deleted, I think the government should introduce some control scheme, let the ICO is more formal, it will attract more investors.
Do not delete the ICO because they are where we make a living in many ways, if you delete the ICO you will probably delete the Crypto market too. The ICO will be suitable for some investors and Bounty campaign participants. So there are quite a few ways to make money, if the ICO finishes probably the Crypto market will end up with.