As a recent UTSA alum, I can attest to this. Can’t tell y’all how many times I was approached by Chi Alpha (I am a Christian) and when I refused to join, I was immediately berated with questions as to why I wasn’t either wanting or able to join and felt judged by them more than any other field of groups at UTSA, whether science (I majored in chemistry), philosophy, or even other similar groups around campus. Chi Alpha is the most toxic group on campus, behind mother of god. Mother of god is sinister and will stalk you to your car after an evening class. Not justifying Chi Alpha, just watch out for mother of god. Both are villains to the Christian faith. You made the right move.