@AyaqGuyaq
The Oxford English Dictionary connects "go Dutch" with "Dutch treat" and other phrases many of which have "an opprobrious or derisive application, largely due to the rivalry and enmity between the English and Dutch in the 17th century," the period of the Anglo-Dutch Wars.
Back in the 17th century the intense rivalry between the British and the Dutch, both countries fighting to build their global empires, led to many phrases being coined by the British navy to insult their Dutch counterparts. Dutch-courage: implied that the Dutch needed a few drinks inside them to have the stomach required for a fight. Dutch defence: retreat, rather than fight. The phrase "going Dutch", where a couple each pays for their own half of a restaurant bill implies "cheap", basically.
until