Crop fields do indeed disrupt the habitats of wild animals, and wild animals are also killed when harvesting plants. However, this point makes the case for a plant-based diet and not against it, since many more plants are required to produce a measure of animal flesh for food (often as high as 12:1) than are required to produce an equal measure of plants for food (which is obviously 1:1). Because of this, a plant-based diet causes less suffering and death than one that includes animals.
https://yourveganfallacyis.com/en/vegans-kill-animals-too