Every liberal does it too, from center right radlibs to far-right “conservatives”: the most extreme right fringe liberals hate the mainstream liberals for not being bigoted enough, the mainstream libs hate the radlibs for not being cruel enough, and the radlibs hate the left for not being chauvinist enough.
Denouncing chauvinism in particular is like a liberal moral event horizon, a cardinal sin against their self-interested belief in the righteousness of the imperial hegemon that keeps the treats flowing at gunpoint.
The problem with libs is that they beleve ideas make history. Once you put yourself in that mindset the chauvinism becomes more reasonable.
The west is the richest so they have the best ideas. Since the liberal idea set is self evidently the best the other countries are backward and their idea sets should be replaced.
In reality the reason the west has been richer for the last 3-4 hundred out of 10-14k years of agriculture has les to do with ideas or western culture and more to do with geografic and demografic realities, that are too comlicated for this post. So the libs are wrong.