it is not certain that gamblers who gamble just for fun disloyal to one casino or move around for the sake of fun.
lots of gamblers who gamble just to entertain themselves loyal to some casino platform. It doesn't matter how big the promotions or bonuses are given at other casinos, the most important thing is that the gambler feels comfortable on the platform of his choice.
on the contrary, gamblers who are prone to moving between casinos are actually gamblers who are looking for a welcome bonus promotion. usually they are always on the lookout for new casinos that have welcome bonus promotions to take advantage of to double the luck.
but in the end, whether they are loyal gamblers or gamblers who are just after promotional bonuses, the most important thing is that they know how to use promotional bonuses responsibly without abusing them.
Players will play in those casinos where it is profitable and comfortable for them to play. If it is not profitable to play in a casino and a player loses a lot in it, he will leave the casino and vice versa will prefer to play in the casino where it is more profitable, but less comfortable.
If you still remember the word casino always wins, maybe your statement is different from this.
regarding your assertion that gamblers will play in profitable casinos. what do you mean profitable? often give victory? or often give bonuses?
as far as I know, there is no casino that always gives wins, because no casino company wants to lose just because it often gives wins. but if what is meant by profit is a bonus, once again I say that online casinos will usually always provide bonuses, but also with requirements that are a little difficult to fulfill. if you are lucky you will get bonus.
so, in my experience, gambling is just for fun. if you consider gambling to be for profit, yes maybe several times you will benefit from the wins you get, but count your losses before getting a win.