This cat emoji cryptogram is a Patristocrat, according to cryptogram jargon, because it's presented without the original word spacings and punctuation, instead simply giving uniformly-sized groups of five symbols. But because it's made of emojis about cats (and cats' interests), we've called it a Patristocat.
It can be solved by looking at letter frequencies and comparing them to English, as well as by looking at digraph frequencies and plausible pairings.
The cat emoji-to-letter mapping used in this case is:
😿 A🥛 B
🐠 C
🐀 D
🐾 E
🐁 F
🐭 G
🐆 H
😾 I
🦁 K
😼 L
😸 M
🐅 N
🥫 O
🙀 P
😽 Q
🐯 R
😹 S
🐱 T
😻 U
♌ V
🐟 W
🧶 X
🐈 Y
(As noted, there might be a discrepancy between the exact appearance of a particular emoji in the image and the way it's displayed in your browser or other software!)
Re-spaced and re-punctuated, the decrypted quotation (from John Perry Barlow) reads
New media, like any chaotic system, are highly sensitive to initial conditions. Today's heuristical answers of the moment become tomorrow's permanent institutions of both law and expectation. Thus, they bear examination with that destiny in mind. Earlier in this article, I asked a number of tough questions relating to the nature of property, privacy, and speech in the digital domain: questions like "what are data?" and "what is free speech?" or "how does one treat property which has no physical form and can be infinitely reproduced?" or "is a computer the same as a printing press?". The events of Operation Sundevil were nothing less than an effort to provide answers to these questions, answers which would greatly enhance governmental ability to silence the future's opinionated nerds.
The emojis circled in red in the original cryptogram are now seen to circle letters spelling out ELECTRICAL CONDUCTANCE.