Also as a white guy, my ancestors have been in North America for quite a while, are mixed between and culturally disconnected from European identities since before the current NA countries were created, also since before some of the current European countries were created, and the ones that did exist back then have probably attacked us at one point or another. Even though I like them, adopting an European cultural identity would be fake and I absolutely hate fakeness. It is true that there are still lots of interesting groups to join, but none based on culture.