Aliexpress is not the problem it is the sellers allowed to trade.
Only buy from sellers with strong standing.
Only pick sellers with greatest amount of orders for the product.
Read all feedback comments and communicate well with seller before you buy. If the seller is not very helpful or does not answer quickly and honestly then do not place order with them.
I have never had a problem raising disputes and getting resolution for items never sent or I have never received I have always got my money back.
I have only ever had to go through my bank once to stop a psyment.
I have successfully completed over 100 orders and have spent approx $30,009 USD in last 12 months for both personal items and stock for my business.