It is a joke when people from the press write stories continually complaining about Trump going after MS-13 members and pretending he lumps all immigrants into his description.  It becomes self-satire when immediately below a headline accusing Trump of this thoughtcrime, the article's lead paragraph goes on to do exactly the same thing.

For decades, every time someone gets killed with a gun, the media blame the NRA and all of its members and essentially all gun-owners.  They always play off groups against each other, but Trump is a problem because he goes hard after violent gang members.

Here is an article in the Washington Post titled "Trump again smears a large immigrant community with the violent actions of a few people."

And here is the lead paragraph:

For the second time in his presidency, President Trump traveled to Long Island to talk about immigrants and crime.  While the event in Bethpage, N.Y., was described as a "roundtable on immigration," the chosen location, Trump's opening comments and the assembled guests made clear that the focus was more specifically on the criminal gang MS-13 and tying their actions to immigrants more broadly.

Here is a screen grab of the headline and lead paragraph:

Directly below it: