I am not the person you replied to but I wanted to echo and extend their statement: you may need to come to terms with the fact that you might not have the capability to help your friend, and it's even possible that nobody does, unless and until they become receptive to that kind of aid.
I am not saying to do nothing, but do be aware of that, e.g. if you give them money and they gamble it away, will you just keep giving them money until neither of you has any at all? And then repeat for every single one of your friends as well?
Decide what you can do and what you cannot. In any case you may not be able to "save" him - that is something that as an adult he needs to do for himself, and may resent you for even trying?
Someone writing a wall of text when it is not asked for or appreciated may be being insensitive to their audience. On the other hand, I've literally had people ask for it and then someone else steps in to complain, so definitely there are Karens who feel entitled to whinge no matter what you do. Just settle in your own mind whether you are doing the right thing, and let being correct remain your guide as to what to do.