Day trading is also a type of trading like the swing trading also, the difference being that the traders only close their trades on a daily basis, although there are chances that a particular trader can span into the next day but its still considered day trading.
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Who said otherwise! OP is more about comparing day trading to gambling not comparing day trading to trading!
There are few similarities between day trading and gambling tbh although I don't want to admit this. Day gambling is too risky and it's most of the times it's based on luck. The reason why I said this is because there is no way to predict the price of a coin in the next moment no matter how experienced you are in technical analysis or whatever trading technic you use.