Okay, so we're pitting a real-world animal against Hobbes from Calvin and Hobbes... Okay, let's get this over with.
First of all, despite the KE rating given for its tackles, it should be noted that the T. Rex weighs 4.5 to 14 tons. Included in that weight range is the weight of African Elephants. African Elephants weigh a good 5-6 tonnes and have killed rhinoceroses, whose KE rating is well above what Hobbes is toting.:
https://vsbattles.fandom.com/wiki/White_Rhinoceros
Asian elephants are smaller at around 4 tonnes and yet a group of three had demolished a wall just as tall as they are, keep in mind that they didn't charge into the wall. They just pushed it! There are even reports of drunken elephants mowing down homes in India.
A low-end T. Rex would match the strength of an elephant and a high-end T. Rex can probably do what it took three elephants to do on its own. Hobbes lacks the superpowers you'd expect a cartoon character to have in order to deal with particularly dangerous threats, so I don't see any way how Hobbes is winning this.