I suggest you also read this:
https://www.amazon.com/Rich-People-Think-Steve-Siebold-ebook/dp/B003XKNWXGWhen I first read this I was "Oh my gosh, I can't believe it". Still not rich but I no longer feel as desperate.
Anyway, here are my opinions on your pointers.
1 - Millionaires are greedy, that is why they become millionaires.
IMHO the greed comes after, or has always been there in the INVIDUAL. Many companies have been raised out of necessity or a need for innovation rather than plain greed.
2 - Company managers just want to use the workers to make themselves rich and others poor.
Well the managers do have their quotas/targets so they have to achieve that but that don't necessarily mean they want to keep their workers poor.
3 - Having money is a question of luck, if not of "gods grace".
Well it is. Many millionaires are second generation and many "self-made" millionaires came from families affluent enough to give them a headstart. Both poverty and wealth are inherited. So even if you may not become a millionaire, you can set-up the next generation for a better life.
4 - Debt is always bad.
Rephrase that to "debt that don't earn you interest is 'bad". You take a loan for a car which decreases in value, that's bad. You take a loan for a car you are going to use for your business, that is good (better if you can write it off).
5 - To make money, you just need to have a great idea nobody thought off.
It's a start but you better be able to to make it workable and scalable, as well as prepare for the inevitable competition.
6 - Cryptos are the way to make money and be successful without having to put effort into it.
Don't think of it in terms of investment. Do you just put your fiat in cabinet and leave it there for years?
7 - To become rich I just have to believe in Bitcoin because many people have become rich doing that.
No. Just no.
8 - To become rich I just have to be more clever and streetwise than everyone around to get my share of the cake.
Yes. Industriousness can only take you so far. Work smarter not harder.
The most popular belief I have heard in my country about money is that God loves the poor more than the rich, so it is easy to infer why many people seem to live happy with their poverty. I have also heard that the only way to get rich is to abuse others, and this kind of mentality is what makes many people of the third world countries to live immersed in poverty despite having all the conditions to be prosperous.
Funny considering that as a country grow richer, they generally get less religious (doesn't apply to the Middle East, they grew rich too fast). Which had me thinking, are countries religious coz they're poor or are they poor coz they're religious.