At the very least, you have to prove that demand is fixed. Otherwise it's meaningless to claim that supply increase have any effect on price (price may momentar

At the very least, you have to prove that demand is fixed. Otherwise it's meaningless to claim that supply increase have any effect on price (price may momentarily decrease, but cheaper price could increase demand which bring price back up). And before someone claims that immigrants don't participate in normal labor pool, then you should advocate for open border, free market style