There killing the market because you cannot guarantee the quality of Chinese parts, its a gamble if it will work or need mods to work. Everybody buys the cheaper option forcing jap brands to decrease their costs and move to china.
Half of the jap brands are owned by chinese companies and if it continues the big brands such as apexi, trust, hks will have to manufacture their products in China. We will all still have the same parts available just quality will be lower
I knew I studied microeconomics for a reason