The Ingraham tweet was first flagged by liberal media watchdog Media Matters.
Collett is the former chairman of the youth division of the British National Party, a British ultranationalist political group. He was eventually dismissed from the party after making death threats to its then leader.
He has expressed his admiration for Adolf Hitler; declared AIDS a "friendly disease because blacks, drug users and gays have it"; and referred to immigrants as “cockroaches.”
Collett