America began as an extension of European civilisation.
What made America great, prosperous, industrious, the world's most successful technological powerhouse, sweeping away all competitors was that the USA'a roots were in this genius that began in Europe (including, and especially, Great Britain).
All these ideological anti-white attacks are attacks on the very fabric of the American civilisation. If these attacks are allowed to continue into their logical conclusion, America is going to become a very scary and very violent place for it's white folks. Think South African Boer farms.
And, the Democrats know that if they can make the majority of the US population non-white, there will never be a Republican president ever again.
Bloomberg - Are you a robot?