If you phrase it from the point of view that the 'white race' is being eliminated and taken over by 'other races', and that is a bad thing on the basis that the white race is in some way to be protected from being diluted - which is what the gentleman appears to be saying - then yes, that is racist, and xenophobic.
If you take a stance that your race is superior, which you must do if you believe that its eradication is obviously a catastrophe, then that makes you a dictionary definition racist.
The fact is, races have mixed and inter-bred as long as there have been races, and most nations have benefited from the mixes - we have, America has, Europe has, and so on.
The fixation that non-white people must be bringing something bad to the gene pool makes this gentleman a dictionary definition xenophobe.
I, and indeed none of us, will be around after a couple of generations, and I would hope that our children will be tolerente and open-minded enugh to see that trying to stop races from intermingling didn;t do the Nazis any good, for very good reason - it is a narrow-minded ignorant, deeply reprehnsible view to assume that your 'whiteness' gives you the right to prolong your race as though it's the only worthwile race on the planet.
Shame on this man, and anyone who supports his horrible views.