One of the most stirring moments of President Donald Trump's inaugural address Friday was his promise to "eradicate" the scourge of radical Islamic terrorism from the planet.

“We will reinforce old alliances and form new ones," Trump said, "and unite the civilized world against radical Islamic terrorism, which we will eradicate completely from the face of the Earth.”

The Republican commander-in-chief seemed to enunciate the words "radical Islamic terrorism" with particular emphasis, as if to stamp out the reluctance of former President Barack Obama to say that phrase during his time in office.

As you might expect, the crowd cheered and clapped at Trump's assertion.

The loud approval wasn't lost on British journalist Laura Penny, however, who chronicled the moment by calling Trump's speech "terrifying."

Twitter users didn't take kindly to Penny's assessment:

She later took issue with the backlash:

Folks weren't buying it, though.

Penny attempted to further clarify things in a reply to another user, saying she "found it scary that Islamic terrorism was framed as the enemy, rather than terrorism in general. U.S. has plenty."

It didn't make much of a dent: