I am in the process of applying to jobs, and one common question I get, if not in the job application, I get it during the phone screening interview, which is: "why are you excited to join our company?" or "why do you want to join our company?" or a variation of that.
When I search for a job, I search by the job title, like "Frontend web developer", and not by company, because that's what I am interested in. Then I read about the company and what they do before I apply, but as long as they are doing legitimate business, and the requirements are aligned with my skills, I apply.
I am not sure what employers want to hear, but I suspect that they would like to hear that you are sold to their mission, understandably to make sure you will stick around, at least long enough. But this is not why I applied to the position, as what I am interested in can be applied to achieve different goals and missions.
Am I approaching this wrongly? If not, how can I answer this question honestly and in an acceptable way to employers?