Most nationalists and other anti-literally-everything-that-is-not-them groups, will use arguments based in quoting others. Including articles, and other sources, thinking they have the facts, and are just defending truth by speaking out... what they dont do, is fact check almost any of it before they start angrily typing.
Youtuber "Shaun", describes this in detail far better than I ever could. Watch this and see to what level this problem is at. Spoiler alert, its through the fucking roof.