However, here I just found out that cockfighting activities are part of religious ritual activities, because as far as I know, cockfighting activities are cultural ritual activities or customs.
There is no religion whatsoever holding cockfights, it's strange and it doesn't even sound very good, especially when it comes to religion, of course it won't be connected with gambling, all things that are gambling must be separated from religion because it is very contradictory and will not be in harmony, I think you are right that that is is a cultural ritual or local custom, that's why cockfighting games only exist in villages, not in big cities.
In my country, cockfighting has been called illegal gambling, they even play cockfighting deep in the forest so they are not easily detected by security forces, but recently they were disbanded after being detected, I also think it seems that cockfighting is not suitable to be added to crypto casinos because it concerns animals and sacrificing animals to death.
It is true with what you say that when it is related to religion and part of religion, it will be very difficult to prohibit it. Because religious law cannot be contested even though the times have changed which is different from culture which can indeed be abolished because it is not in accordance with the development of your era and the culture contains negative things.
If we are considering the entertainment aspect of it, cock fighting could be that lovely in giving fun we wanted to have in gambling, as for those in local settings, this is more predominant to the region underdeveloped, on the same view cock fighting is eady to predict base o their physical strength, we can grade a cock with it's experience in fighting and how it appears, but when we are to consider the law and regulations that guides the livestocks, their use may not be permitted in most developed countries because they believed it's a form of abuse.
Yes, it is fun but it is not appropriate to show this because it contains negative things, namely violence against animals. not harassment because this is an animal not a woman or a child. And I don't think it's just underdeveloped areas that like cockfighting activities, even modern people who live in urban areas like cockfighting, and the exact reason why cockfighting is held in remote and rural areas, this is because it avoids law enforcement officials because in remote and rural areas law enforcement is not as strict as in urban areas.
I do not think cockfighting has much to do with religion. Perhaps, it had something something to do with pagan rituals or Gods before the Era of Christianity, back there in the old continent.
And it is true that no religion teaches evil including cockfighting.