Yep - but I think many of the better and more successful ones (like that Canadian guy) are smart enough to realise what is coming - and probably why they are all currently 'restructuring'. But the many 'little' blokes who have a channel with their Thai wife and are making some money each month showing people things in Thailand, are going to be in for a huge shock.
The thing about backpackers, as found in Australia, is that they travel around a lot and spend their money with the locals. They do occasionally work for cash here and there, but they spend that money - again with the locals. They tend to get involved with the local culture and they dont tend to become part of the local criminals (drug imports etc.). They also will sometimes decide to stay longer (spend more) and some stay forever - plus some go back and later come back as an immigrant. But if you look at only the 'surface' stuff like paying cheap rents and eating cheap, those pluses are not counted. Because of all their net positives, Australia has 3 and 6 month 'backpacker' Visa (from selected countries), and they are allowed to work (and pay taxes) in that period. Many of those bar/restaurant workers in the big cities of Australia are UK and USA backpackers on an extended holiday - they make money in the cities and then they go to the country and spend it. And some of them actually decide to stay (meet a girl/boy or get a great job) and some use that to check out the country before applying to emigrate later.
Meanwhile, in Australia we found out that the Chinese and Indian and Russian tourists dont spend anywhere near as much as they come on cheap 'packages', and they have a higher tendency to get up to no good, and they contribute SFA to the economy overall, and they give very little net benefit. Plus they are rude and arrogant, and show respect for our customs and social norms.
Tell those UK and USA backpackers that they are more than welcome in Australia - and even from some other countries too. Thailand doesn't want them, nor does Indonesia/Bali - we dont have the culture or history, but our rainforests and beaches and tropical island resorts (many work there) are the best and cleanest and safest in the world. Just dont leave your shoes outside - deadly spiders love to nest in them overnight - only kidding - deadly snakes actually