all the countries already have some rules against ICOs and they must tighten these rules too. because these days the altcoin market (because of ethereum) is plagued with all these scam ICOs which are all acting illegally and it actually is pretty bad for altcoins in general because if things go on like this you can be sure that people will regard altcoins as scams and will only stick to bitcoin.

There needs to be regulation but banning them all together is not the right solution. However they need to start from somewhere. ICOs in China were already starting to get out of hand with Binance launching like 5 every day. Bitcoin also needed to cool down a bit, so in my opinion this is all healthy in the long term. What you don't actually see is that there are many financial criminals involved in a lot of these ICOs, going in for a quick ROI.