The truth is that that you cannot make good money with freelancing
What is your basis for you to say that freelancing will not make you earn good amount of money?
Freelancing can give you enough profit depending on the skills that you are doing. In freelancing, there is a contract where you can decide if that salary is reasonable for you to accept that. It seems like you are just belittling those people who do freelancing. Mind your own business and let them do what they want to do to earn money.
I found there that many youtube channels are promoting freelancing but they are just misleading you. Freelancing has no more scope. Do not waste your time by learning anything related to freelancing. Instead learn something about trading.
You can promote trading without even telling some bad description about freelancing. If you found trading as an effective work for you to earn money, then so be it. Maybe some people are also good at freelancing and not good in trading, it depends on the people. But trading can be learned and practice when you want to do it. You shouldn't compare the two because they have its own advantages into a person.