It would probably be harder to trade and make money if the gamblers wouldn’t be able to use as high leverage as they want. That they blow up lets the brokers keep lower spreads for the rest of us
There are many brokers which provide upto this much leverage like I C M, Fx tm etc. but I would say be cautious with the leverages because they are really a double edged sword. I think you cannot use this much leverage until you are absolutely sure that this trade would be a win. If you lose a trade at this much high leverage, you will be crushed. It should always be kept in mind.
You can use offshore licences from certain brokers like ICM and FP Markets. They do provide a max leverage of 500:1 when choosing their offshore licence like St.Vincent for FP Markets.
Some brokers, including ICM and FP Markets, offer offshore licences that you can use. When using their offshore licence from St. Vincent, they offer a maximum leverage of 500:1 for FP Markets.