From dictionary.com
A scam is a deceptive scheme or trick used to cheat someone out of something, especially money
You'd only ever consider the entire crypto scene a scam if you ever tried to enter it without knowing anything. There are some crypto projects that are scams, obviously, just like any other industry (but more rampant here I guess), but that doesn't mean that the entire place is a scam, especially if you consider the biggest name in here which is Bitcoin. Wouldn't conside that a scam since "scamming" would require someone to be on the "opposite" party, Bitcoin doesn't have that, but other projects do.
Can I confidently choose Crypto World to safely store all my hard earned wealth?
Like the bank?
No, not really. The place is highly volatile, I don't think you should invest everything in it. Maybe a part of it, one that you're willing not to spend for a long time, specifically investing it on Bitcoin.