Use of resources is more about using them wisely and justly.
Every human ever born inherently owns every resource. We are a species on a planet. The management of a resource needs to be a collective consent, and must benefit the most humans possible.
One can argue that capitalism is an effective way to benefit the most humans possible. But capitalism too requires permission from the rest of humanity.
In this scenario there's other sentient beings who might depend o those resources or like their way of life based on those resources.
Sentient rocks might be solar powered and use the land to bask in the sun humans want to turn it into farm.
Each rock is a level 12 Druid

.
Do these creatures understand that humans are intelligent beings? If so, do they care? Have the looked for another solution? Are humans actually a threat, with credible evidence for it, or are they perceived as a threat?
If the answers are yes, no, no, and they just decided that humans are a threat, then I would decide they were evil.
If the aliens truly can't understand humans are intelligent--like, they're too alien to grok the concept--then I would not say they're evil. It's a communication issue.
If the aliens can't be bothered to find or implement another solution, then I'd say they're evil. If some humans are the threat but the aliens decide to kill all humans, then I'd say they're evil. If humans are a threat for anything other than truly immediate reasons (if we don't kill them right now, then they will do this terrible, terrible thing), then I'd say the aliens are evil.
They're intelligent and sentient they are likely able to recognize the same in humans.
However complete alien mindset they may or may not have morality as humans see it. Eg humans may be a viable food source or seen as an invasive/destructive species eg sentient locusts.
What humans see as good the other species sees as bad and/or a threat to their existence. They may or may not be right in that belief mostly for the sake of discussion. Wh they may have experienced the result of human expansion in previous ages or they can see the future.
Or they may just want to eat all humans regardless. More interested in people's thoughts of various scenarios on who is right or wrong.
So e scenarios I can think of.
1. Humans are a direct threat to their existence.
2. Humans are percieved to be a direct threat to their existence.
3. Competition for resources may the strongest win.
4. Percieved competition for resources.
5. Long term threat not clear to most in present time.
6. Long term threat they percieve as real. Eg if on earth they can forsee climate change via human action. Or humans did cause immense destruction in the past.
7. Very alien mindset. They know humans are intelligent they just don't care or see them as a self aware food source.
Hell maybe they do everything humans do but are better at it eg expand faster consume faster.