Yes, Chinese copy stuff - get over it. We may not consider it ethical, but its acceptable to them. Stop buying their sh!t if you don't like it.
Anyway, you guys crack me up. Let's compare:
Alibaba/Aliexpress: A few bucks, may or may not be what you expect, may or may not pay big dollars to ship it, may or not get it within a few days, may or not work right or adhere to listed specifications, may or may not get any response if you request any help, may or may not get any actual resolution for any problems.
Brewhardware (or other reputable sources here): A few bucks more, will be what you expect, will be a few bucks to get it, will get it in a few days, will work correctly, will get a response ASAP, will have the problem resolved if needed.
You should have some self respect for your time and efforts. When designing a solution, its not worth saving a few bucks to take on unnecessary risk. Pay someone to elminiate that risk for you. Yes, you may feel like you got a good deal but it will pretty much always cost you more in the end.