Yes gambling and trading are two completely different fields these have no comparison.
Gambling is based on luck and you will lost your money most of the time but on the other hand trading required knowledge and skills that makes it a great field to earn money through proper hard work.
Yes gambling and tradings are miles apart, but when a supposed trader sets off trading without good enough knowledge, skills and experience, then there is really no difference. Guess work is no trading and it is only by understanding the market that sustainable profits are made possible other than that, it is all waste of precious time and money.
Yeah mostly people who new to trading world will just trade randomly
As they has no skills, knowledge, experience and nothing it's make trading sometimes similar to gambling
Trading is the game of manipulating market if you are smart and have a big amount of money enough
People with a bigger bankroll can do manipulating certain market but of course in a small scale
I mean someone making a group of big player and set some goal to play with the price , i've been heard abiut this.
As you said people who are new to trading just trade randomly that is because they dont have that much of money to trade with and to be honest, the only ones that really are experienced with trading are the ones who have much money to begin with, and I dont think this should stop the little ones from tying to experience it.