This is a ridiculous over-reaction based on an extremely shallow interpretation of the GDPR. If you are running a small business and you feel that you won't be able to operate your business because of the GDPR consider all those other laws that you have to be in compliance with as well. If that's your attitude towards legal compliance then you should probably shut your business down completely rather than to hope tha…
It is impossible to sell raw-milk cheese in the United States. Are French cheese makers overreacting by simply choosing not to do business here rather than change their centuries-old production techniques? It is illegal to sell kinder eggs in the US, because of some law that involves children accidentally swallowing toys. Is Kinder overreacting by refusing to sell those candies here? You cannot buy Bovril in the US,…
Similar arguments apply to the other examples you use, I see your point and there are valid reasons to not enter a certain market because of the legal climate there but the point I am trying to make is that the OP has not raise any valid point at all other than 'I don't want to comply'. And that's fine by me but then don't bother dressing it up in a bunch of made up requirements.