I'm half Latin and half white American, purely by DNA I'm probably 75-80% white and the rest being Black or Native American from South America. I absolutely hate racemixing, both in general and with my own personal experience.
Growing up in a Hispanic area, I was considered white, as they have a more lienent definition of what "white" is. I saw myself as white and spent was much more in tune with my Dad's American side of the family. However once I got about 10 or 12 I realized that the rest of the US didn't work like this. I remember feeling almost lied to by my parents for letting my live my life up to that point in a bubble.
As I grew older I became more aware of people's opinions on "what" I was. I realized that identifying with my dad's long, white Southern roots was foolish because I was born a Hispanic far from the south. I made attempts to learn Spanish, on the other hand, but people weren't welcoming of some gringo-ized mixed kid. I felt, and have felt for years to now, stripped of my identity. Since little I was always placed in a cultural limbo of both whites and hispanics seeing me as "not them." The white culture I grew up in and thought of as mine, despite a history dating back to the revolutionary war, was completely lost on me in a single generation.
I've brought this insecurity up to people before, and more than once I've gotten the "in the future, everyone will look like you" argument I detest. A future where all races loose what makes them themselves for the sake of "globalism" is not a world I want to live in.
I'm sympathetic to Alt-Right ideas, but realistically any "solution" would involve me being kicked into Brazil or being sterilized. But I'm here, halfway supporting an ideology that would only really benefit from my suicide (not happening) so as to stop people from pulling this bullshit. Don't have mixed kids. It'll fuck with them, some worse than others. I've met more than one other mixed person that agrees with this too. While I can't flat out support the AR, I wish you the best of luck. What's lost on me, hopefully can be saved for someone else.