That is a hefty fine to pay.
It is, but gamblers still never learn.
As far as I know, they are illegal if people will not be doing that on a licensed cockpit,......
No, you can't apply that rules in the pandemic, not only cock fighting is not allowed but all sort of gambling as it gathers masses that would be prone to passing the virus among the people. So even if you do in a legal venue but the act itself is prohibited, you are still doing an illegal activity.
I think maybe in other ways such as making gambling places online and various other types that can still gamble so that the spread of Covid can be avoided and there is no need to be afraid of being exposed to this virus because we are gambling at home and don't need to hold gatherings.