The country cannot hope for economic recovery thanks to the operation of casinos. Tax revenue from casinos is very small compared to industry, mining, the financial sector, it, and so on.
Therefore, the authorities opening Las Vegas decided to give people a chance to relax and unwind. And of course, they gave casinos and hotels the opportunity to earn a little extra money.
I think the tax revenue from casinos is not too small because the gambling industry makes big money from the gamblers. The country itself can recovery the economy by the other sector, so I think if the gambling industry with the other sector can give a contribution to the government, soon the economy will recover, and the country can recover too. But still, it needs time before everything can back to the new normal.