How did the aliens fly spaceships?

Rating: 7/10 (6 June 2018)

So this movie has been reviewed endlessly, so I'm not going to add to that. The only thing that I will address is the question of technology. We see the aliens running around, apparently completely naked, and without tools. Their hands have massive claws, which would make it very unwieldy to hold and use any type of tools. And yet we know that the aliens didn't just spawn upon the planet earth - they had to arrive in some manner. So my question is: how are these aliens, which act like nothing more than super scary dogs, able to build such advanced technology that they travel millions of light-years through space yet there is no evidence of technology on them? No clothes, no tools?
Humans can create x-ray devices and night vision goggles and such, technology that gives us capabilities far beyond what our natural bodies are able to perceive, and we have not developed the technology for interstellar travel. But these aliens, who have mastered interstellar travel, cannot create devices that give them sensory perception beyond their natural body?
The other reviews point out the other massive plotholes, but this technology thing is the one that really grinds my gears.
I did enjoy the movie, a six or seven out of 10 just for the entertainment factor, but you must suspend all logic when you watch it.