I need this paragraph proofread

To test Erdman’s statement, Deja Guinn, a Christian and senior at WMU decided to join the SSA group. Guinn says unlike most of the group members, who are atheist agnostic, she is a Christian and believes in how Jesus Christ would see the world. However, Guinn says she decided to join to group as an underdog to share her point of views on topics from a religious standpoint, and also to enhance her knowledge of an atheist’s perspective on things.

what other word could I use besides underdog? and how could I better that sentence? also I need help revising the last sentence.
If you see any other errors let me know..
Thanks

who are atheist OR agnostic

Instead of "underdog," you could say . . .she decided to join this group as a minority member . . .

However, Guinn says she decided to join to group as an underdog to share her point of views on topics from a religious standpoint, and also to enhance her knowledge of an atheist’s perspective on things

do you believe this sentence is fine Ms.Sue?

I still like minority member better than underdog. This club is not a contest.

oops I'm sorry i did change it to minority member

To test Erdman’s statement, Deja Guinn, a Christian and senior at WMU, decided to join the SSA group. Guinn states that unlike most of the group members, who are atheist or agnostic, she identifies as a Christian and believes in interpreting the world through the lens of Jesus Christ. However, Guinn joined the group with the intention of offering her unique religious viewpoints, despite being in the minority, and to broaden her understanding of the atheist perspective.

Instead of using "underdog," you could consider using "minority" or "outsider."

To improve the sentence, you could rephrase it like this: "However, Guinn willingly joined the group as a minority member, aiming to share her religious perspectives and gain a better understanding of the atheist's viewpoint."

As for potential errors, everything seems fine grammatically. Just make sure to add the necessary punctuation marks (comma after WMU, period at the end).