It has an insanely high reproduction rate and its acid blood can eat through anything that’s not its own veins. It is also extremely stealthy and has infinite motivation to kill all non-Xenomorph organisms. And its reproduction method utilizes facehuggers to attach to a host’s face and implant a chestburster inside the host’s chest cavity via a long tube inserted into the trachea. The chestburster kills the host instantly upon being fully developed.
I also recognize some of those other things in that meme, and I know the rancor from Star Wars is too slow to catch a xenomorph and Ridley could probably injure it but xenomorph is too good at using dodging a fireball so Ridley would have to get within melee range and he would be eaten by the acid blood if he struck the xenomorph. And that other thing; idk what it is, but a facehugger can easily take it down.