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Yes, it is very easy to turn trading into a gambling game and it will depend on the trader's attitude to trading. And if a trader does not adhere to a trading strategy, violates risk management, then such trading will be comparable to casino, where the result depends on luck, not knowledge.
Without skills and knowledge - trading is definitely called gambling.
Traders don't rely solely on price volatility, even though it's what can generate profits. Analysis is necessary and they need to study several indicators to determine the best time to buy. Traders who are called gamblers rely solely on luck - meaning no analysis, just buying randomly and waiting for the results. So I have to agree that traders and gamblers are fundamentally different.