Yesterday John Earnest, a 19 year old white supremacist, entered a synagogue in San Diego with an AR-15 style weapon. Inside the synagogue, filled with Sabbath worshipers, he open fire and killed one person and wounded three. He fled but later surrendered to police officers.
Before the attack Earnest uploaded "an open letter" with lots of anti-Semitic and homophobic tropes. He published the link to the letter on the radical right wing site 8ch.net. The open letter is in the question and answer style of an interview:
“How does killing Jews help the European race? The European race is doomed? What are you talking about? These Jews were innocent!”
Every Jew is responsible for the meticulously planned genocide of the European race. They act as a unit, and every Jew plays his part to enslave the other races around him—whether consciously or subconsciously. Their crimes are endless. For lying and deceiving the public through their exorbitant role in news media; …
The author claims that he set fire on nearby mosque last month and says that he drew inspiration from the terrorist who in March killed some 50 people at two mosques in New Zealand.
Earnest calls himself a Christian and quotes (evangelical) scripture. There are also a few Q&As about Trump and 'Conservatives' (emphasis added):
“Are you a Trump supporter?”
You mean that Zionist, Jew-loving, anti-White, traitorous cocksucker? Don’t make me laugh.“Are you affiliated with any political ideology?”
Yes. It’s called not wanting to go extinct.“Are you a conservative?”
I am not a useless, spineless coward so no—I am not a conservative. Conservative is a misnomer. They conserve nothing. They’ll complain all they want but they won’t take up arms and threaten their government with death (the only thing that works). Ever heard about the Battle of Athens (1946)? Find your balls again you insufferable faggots. If you do not defend your rights you deserve none.
Where did John Earnest get these antisemitic and homophobic ideas from?
It may well be that Earnest read the New York Times.
The caricature below appeared in Thursday's international print edition of the New York Times.

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The sentiment is easy to understand. Trump is blind about the political reality in the Middle East and is 'guided' by Netanyahoo who thereby gets everything he asks for.
But why is Trump depicted with a kippah or yarmulke? Trump is a Presbyterian with an Evangelical leaning, not an orthodox Jew. Was a more realistic depiction, Netanyahoo leading the goyim donkey Trump by the nose, too strong?
During the 1930s the Nazi weekly Der Stürmer published similar tropes. The "Hofjuden" were those Jews who were said to influence or secretly lead the royal courts.

After some uproar the Times apologized:
"The image was offensive, and it was an error of judgment to publish it."

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The homophobic 'cock-sucker' and 'faggots' slurs John Earnest uses may also originate from reading the Times.
In mid 2018 the NYT published and promoted an animation that depicted Trump and the Russian president Vladimir Putin as homosexual lovers.

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The 'paper of the record' is supposedly liberal and zionist. It is owned and led by a Jewish family. Despite that it publishes cartoons that are based on anti-semitic tropes and homophobic slurs.
The New York Times is openly hostile towards Trump as well as to Russia. Its hatred seems sufficient to permit the use of cliches it otherwise rejects. It is no wonder then that such sentiments gain in prominence in the wider society. Lunatics like John Earnest pick up on these and use them to justify their terrorism.