~snip~
What do you think of your friends to take advantage of situations like this, is it now the right time to buy a few coins?
If you're referring to all those altcoins that are sinking, then I don't see how it would be wise to invest in something that has the possibility of disappearing from most of the main CEX - which means that it will be worth (probably) even less than it is the case today. However, if someone wants to take the risk and thinks that the situation will turn in their favor, let them gamble, because altcoins have always been more of a gamble than a serious investment.
In particular, some tokens that have been registered as securities by SEC have been devastated
You ask a question, and at the same time you gave an answer - Bitcoin is not a security for the SEC, and thus it does not go into the same category as all those altcoins you mention. For those who refuse to accept reality all these years, it seems that they will accept it the hard way.