Not all plywood from China is bad. Not all domestic plywood is good. My experience, though, has been to stick with the higher quality material--which in the case of plywood, tends to be American or Canadian and not Chinese.
In the words of John Ruskin (1819-1900)--
"It's unwise to pay too much, but it's worse to pay too little. When you pay too much, you lose a little money--that's all. When you pay too little, you sometimes lose everything, because the thing you bought
was incapable of doing the thing it was bought to do. The common law of business balance prohibits paying a little and getting a lot - it can't be done. If you deal with the lowest bidder, it is well to add something
for the risk you run, and if you do that you will have enough to pay for something better."