I have been enjoying this post because even here in New Zealand, there has been quite a noticeable decline in fabric stores over the past
15-20 years - and the reason is the same as in the UK and USA, that is to say, many imported clothes items are cheaper to buy than to make.
But not always. Good quality, well cut clothes are still quite expensive, especially if high fashion, because they will in all probability only last one or two seasons in fashion. However a good quality pair of slacks or basic straight skirt should last years - and these are a good investment if your figure is reasonably standard.
I sew all my own clothes because I am an odd fit (and decidedly odder as I reached middle age). And we do have some quite well-stocked fabric stores in the city where I live, and sometimes there are fashion house fabric ends of lines sales where really nice fabrics can be picked up virtually for a song.
Some of the local clothing manufacturers send fabric ends of lines to a charity outlet which opens one morning a week to sell to the public. The premises are small and the experience a bit like being in a zoo, but worthwhile goods can be bought.
We still have one department store that caters for dressmakers (home and/or professional), with high quality fabric choices.
Buying online from the USA would not really suit me due to the high shipping costs (unless of course they offer free shipping - some hope!)
Daisy.
Don't assume malice for what stupidity can explain.